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Azalea - Rhododendron

In Japan, the Azalea symbolises spring; in the same way as Maples and Pines, it is one of the most widely used essences for creating bonsai in its many varieties, as it possesses all the ideal characteristics: small, deciduous or perennial leaves, a pleasing, wrinkled trunk, a good nebari, rapid growth and above all, it is particularly suitable for pole forms. Thanks to the ease with which it sprouts in any part of the stem, even drastic pruning can be applied. Another aspect that makes it rather interesting for bonsai cultivation is that it can be shaped into almost any style.

In areas with a mild climate, azaleas can be safely placed outdoors all year round. However, in areas subject to colder temperatures, they need to be protected, for example by placing them in a cold greenhouse, at least during periods of frost. During the summer, this species tolerates the high temperatures of the hottest days quite well, although it is always best to provide shelter from direct sunlight, otherwise the leaves take on a reddish color and lose much of their shine. Furthermore, in case of excessive sun exposure, there is a risk of dehydration and failure to assimilate fertilizer, resulting in spotting on the edges of the leaves, similar to that caused by fungi. It is important to keep in mind that Azaleas also benefit from a well-ventilated location. If you want to keep it indoors for a while to fully enjoy its spectacular flowering, you can do so, provided it is for a very limited period: a maximum of 4 days.

Azaleas do not like hard water: if this problem arises, it is best to use a descaling product such as those in the Bonsan range. As for how often to water, a distinction must be made depending on the season: during the growing season, until the end of July, watering should be very abundant, while after flowering, it should be more moderate. However, it is important never to let the soil dry out completely, even in winter (including the coldest months), as its thin fibrous roots dehydrate easily. Ensuring the right amount of water for azaleas is very important in order to avoid cultivation problems: overwatering leads to weak and long growth, with consequent leaf fall; under-watering causes stunted growth, with twisted, yellow leaves that will fall, along with the buds.

The best time for transplanting is immediately after flowering, because if done earlier, the plant would weaken at the expense of flower production. Young specimens should be transplanted every 2 years, while for more mature ones, every 3 or 4 years will suffice. Azaleas tolerate root pruning well, and after the operation they generally produce numerous capillary roots in a short time. Before transplanting, remove the soil from the top and bottom of the stump, paying particular attention to the central area under the tree trunk, where it is easy to find rotting roots and dry, compact soil. At this point, prune one-third of the roots, giving priority to the thickest ones. The cuts resulting from the operation should be treated with healing mastic. The optimal compound is kanuma.

Since these are fast-growing plants, it won't take long for them to develop good branching. Before flowering, the branches must be thinned out, pruning the shoots that grow directly upwards or downwards; in an already formed plant, even the strongest shoots must be cut. When the tree is about to flower, in order to avoid excessive stress on the tree, a selection of buds is made. Every 12-13 years, to reinvigorate the plant and obtain the best possible flowering, the Japanese recommend completely removing the main branches and starting the shaping process again. When pruning, care must be taken to prune the apex less than other parts of the tree, as this is the weakest area.

This is done to help stimulate the growth of new branches and keep the bonsai's foliage compact and well-structured. This practice consists of gently removing the tips of new shoots, which are still soft. It should be done throughout the growing season, from spring to summer, but not during flowering, as the flower buds could be damaged. The operation should be carried out regularly, every 2-3 weeks, when the new shoots are still young, and consists of removing about 2-4 leaves to stimulate denser growth and reduce overly long internodes, which could compromise the shape of the bonsai.

The best time to apply the wire is after flowering because, having pruned, the structure of the tree is more visible. Copper wire is the most suitable because it is stiffer than copper-coated aluminum wire and therefore provides a better hold, especially for thick branches. To achieve good results without taking any risks with this technique, it is important to bear in mind that azalea wood is very delicate and therefore young branches should not be wrapped. One tip to keep in mind when applying the wire is to cover it with florist's tape to avoid leaving marks on the bark. You should also take care to remove it as soon as it starts to cut into the bark. For thick, vigorous branches, it is better not to use wire to shape them, but rather tie rods and weights.

At the end of flowering, after pruning, apply Bonsan Stimulating Fertilizer combined with Bonsan Liquid Organic Fertilizer three times every 8-10 days. During other periods, use Bonsan Hanagokoro Solid Organic Fertilizer every 15-25 days, excluding July and August. Twice a year (in autumn and at the end of winter), apply Bonsan Hanagokoro Solid Organic Fertilizer. It is also advisable to apply Bonsan Mineral Curative Solution 6-8 times a year. To stimulate rooting, use Bonsan Organic Mineral Liquid Fertilizer with B vitamins instead of Bonsan Organic Liquid Fertilizer.

The diseases to which azaleas are most frequently susceptible are: scale insects, aphids, mites, red spider mites, and sooty mold. To prevent these pests from attacking the plant, simply follow the correct maintenance rules, especially with regard to exposure and watering. However, if they do appear, they can be easily eradicated by applying specific products. However, to avoid having to treat the plant once it has already been attacked, it is advisable to carry out appropriate preventive treatments periodically.

Advice on:
Location

In areas with a mild climate, azaleas can be safely placed outdoors all year round. However, in areas subject to colder temperatures, they need to be protected, for example by placing them in a cold greenhouse, at least during periods of frost. During the summer, this species tolerates the high temperatures of the hottest days quite well, although it is always best to provide shelter from direct sunlight, otherwise the leaves take on a reddish color and lose much of their shine. Furthermore, in case of excessive sun exposure, there is a risk of dehydration and failure to assimilate fertilizer, resulting in spotting on the edges of the leaves, similar to that caused by fungi. It is important to keep in mind that Azaleas also benefit from a well-ventilated location. If you want to keep it indoors for a while to fully enjoy its spectacular flowering, you can do so, provided it is for a very limited period: a maximum of 4 days.

Watering

Azaleas do not like hard water: if this problem arises, it is best to use a descaling product such as those in the Bonsan range. As for how often to water, a distinction must be made depending on the season: during the growing season, until the end of July, watering should be very abundant, while after flowering, it should be more moderate. However, it is important never to let the soil dry out completely, even in winter (including the coldest months), as its thin fibrous roots dehydrate easily. Ensuring the right amount of water for azaleas is very important in order to avoid cultivation problems: overwatering leads to weak and long growth, with consequent leaf fall; under-watering causes stunted growth, with twisted, yellow leaves that will fall, along with the buds.

Repotting

The best time for transplanting is immediately after flowering, because if done earlier, the plant would weaken at the expense of flower production. Young specimens should be transplanted every 2 years, while for more mature ones, every 3 or 4 years will suffice. Azaleas tolerate root pruning well, and after the operation they generally produce numerous capillary roots in a short time. Before transplanting, remove the soil from the top and bottom of the stump, paying particular attention to the central area under the tree trunk, where it is easy to find rotting roots and dry, compact soil. At this point, prune one-third of the roots, giving priority to the thickest ones. The cuts resulting from the operation should be treated with healing mastic. The optimal compound is kanuma.

Pruning

Since these are fast-growing plants, it won't take long for them to develop good branching. Before flowering, the branches must be thinned out, pruning the shoots that grow directly upwards or downwards; in an already formed plant, even the strongest shoots must be cut. When the tree is about to flower, in order to avoid excessive stress on the tree, a selection of buds is made. Every 12-13 years, to reinvigorate the plant and obtain the best possible flowering, the Japanese recommend completely removing the main branches and starting the shaping process again. When pruning, care must be taken to prune the apex less than other parts of the tree, as this is the weakest area.

Pinching

This is done to help stimulate the growth of new branches and keep the bonsai's foliage compact and well-structured. This practice consists of gently removing the tips of new shoots, which are still soft. It should be done throughout the growing season, from spring to summer, but not during flowering, as the flower buds could be damaged. The operation should be carried out regularly, every 2-3 weeks, when the new shoots are still young, and consists of removing about 2-4 leaves to stimulate denser growth and reduce overly long internodes, which could compromise the shape of the bonsai.

Wiring

The best time to apply the wire is after flowering because, having pruned, the structure of the tree is more visible. Copper wire is the most suitable because it is stiffer than copper-coated aluminum wire and therefore provides a better hold, especially for thick branches. To achieve good results without taking any risks with this technique, it is important to bear in mind that azalea wood is very delicate and therefore young branches should not be wrapped. One tip to keep in mind when applying the wire is to cover it with florist's tape to avoid leaving marks on the bark. You should also take care to remove it as soon as it starts to cut into the bark. For thick, vigorous branches, it is better not to use wire to shape them, but rather tie rods and weights.

Fertilization

At the end of flowering, after pruning, apply Bonsan Stimulating Fertilizer combined with Bonsan Liquid Organic Fertilizer three times every 8-10 days. During other periods, use Bonsan Hanagokoro Solid Organic Fertilizer every 15-25 days, excluding July and August. Twice a year (in autumn and at the end of winter), apply Bonsan Hanagokoro Solid Organic Fertilizer. It is also advisable to apply Bonsan Mineral Curative Solution 6-8 times a year. To stimulate rooting, use Bonsan Organic Mineral Liquid Fertilizer with B vitamins instead of Bonsan Organic Liquid Fertilizer.

Care

The diseases to which azaleas are most frequently susceptible are: scale insects, aphids, mites, red spider mites, and sooty mold. To prevent these pests from attacking the plant, simply follow the correct maintenance rules, especially with regard to exposure and watering. However, if they do appear, they can be easily eradicated by applying specific products. However, to avoid having to treat the plant once it has already been attacked, it is advisable to carry out appropriate preventive treatments periodically.

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Rhododendron Indicum Shironanbanishiki - Azalea - 62 cm Rhododendron Indicum Shironanbanishiki - Azalea - 62 cm 2
Available
Flower Bonsai

Rhododendron Indicum Shironanbanishiki - Azalea - 62 cm

Azalea - Rhododendron
Y45ALI-5179
€190.91
Rhododendron indicum bonsai, measuring 54 cm in height without the pot, with a trunk diameter of 2 cm and a nebari of 5 cm. Informal upright style. The plant is grown in a glazed stoneware pot measuring 24 x 19 x H 8.5 cm.
Azalea bonsai 70 cm | Cream-coloured oval pot Azalea bonsai 70 cm | Cream-coloured oval pot 2
Available
Flower Bonsai

Rhododendron indicum - Azalea - 70 cm

Azalea - Rhododendron
Y45ETI-7364
€509.09
Azalea bonsai characterised by its height without pot of 60 cm, and trunk size of 1-1.5 cm. The plant is grown in an oval glazed stoneware pot whose dimensions are 31x26xH10 cm.
Rhododendron Indicum - Azalea - 24 cm Rhododendron Indicum - Azalea - 24 cm 2
Available
Flower Bonsai

Rhododendron Indicum - Azalea - 24 cm

Azalea - Rhododendron
Y45LNE-5506
€177.27
Shohin Bonsai of Rhododendron Indicum characterized by a height without pot of 16 cm, a trunk size of 1,5 cm and a nebari of 5 cm. Slanted style. The plant is grown in a glazed stoneware pot whose dimensions are 8,5 x 8,5 x H 8 cm.
Azalea bonsai 14 cm | Stoneware cloud vase Azalea bonsai 14 cm | Stoneware cloud vase 2
Available
Flower Bonsai

Rhododendron indicum - Azalea - 14 cm

Azalea - Rhododendron
Y45LEI-7339
€136.36
Azalea bonsai characterised by a height without pot of 10.5 cm and a trunk size of 0.8 cm. The plant is grown in a cloud-shaped stoneware pot whose dimensions are 11x8xH3.5 cm.
Bonsai of Azalea of 48 cm | Rectangular brown plastic pot Bonsai of Azalea of 48 cm | Rectangular brown plastic pot 2
  • New
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Flower Bonsai

Rhododendron indicum Miyu no kagayaki - Azalea - 48 cm

Azalea - Rhododendron
Y45MAI-7456
€290.91
Bonsai of Azalea characterized by its height without pot of 39,5 cm, a trunk size of 2 cm and a nebari of 5 cm. The plant is grown in a rectangular plastic pot whose dimensions are 26,5x19,5xH8,5 cm.
Azalea bonsai 31 cm | Rectangular blue pot Azalea bonsai 31 cm | Rectangular blue pot 2
Available
Flower Bonsai

Rhododendron indicum - Azalea - 31 cm

Azalea - Rhododendron
Y45LME-7346
€122.73
Azalea bonsai characterised by a height without pot of 24 cm and a trunk size of 1.5 cm. The plant is grown in a rectangular glazed stoneware pot whose dimensions are 16x13xH7 cm.
Rhododendron laterinum - Azalea - 40 cm Rhododendron laterinum - Azalea - 40 cm 2
Available
Flower Bonsai

Rhododendron laterinum - Azalea - 40 cm

Azalea - Rhododendron
Y45LNEI
€1,772.73
Azalea bonsai characterised by its height with pot of 40 cm, trunk size of 6 cm and nebari of 12 cm. The plant is a unique specimen and is grown in a pot whose dimensions are 27 x 18 x 7.5 cm.
Azalea bonsai 45 cm | Blue round plastic pot Azalea bonsai 45 cm | Blue round plastic pot 2
Available
Flower Bonsai

Rhododendron indicum benikomachi - Azalea - 45 cm

Azalea - Rhododendron
Y45ATE-7256
€240.91
Bonsai of Azalea characterized by a height without pot of 35,5 cm, a trunk size of 2 cm and a nebari of 5 cm. The plant is grown in a round plastic pot whose dimensions are Ø20xH9,5 cm.
Bonsai of Azalea of 31 cm | Oval turquoise pot Bonsai of Azalea of 31 cm | Oval turquoise pot 2
Out-of-Stock
Flower Bonsai

Rhododendron indicum - Azalea - 31 cm

Azalea - Rhododendron
Y45LAI-7350
€109.09
Bonsai of Azalea characterized by a height without pot of 25,5 cm, and a trunk size of 1 cm. The plant is grown in an oval glazed stoneware pot whose dimensions are 14x10,5xH5,5 cm.
Bonsai of Azalea of 41 cm | Oval blue pot Bonsai of Azalea of 41 cm | Oval blue pot 2
Available
Flower Bonsai

Rhododendron indicum Kikuhime - Azalea - 41 cm

Azalea - Rhododendron
Y45PTE-7424
€422.73
Bonsai of Azalea characterized by a height without pot of 36 cm, a trunks size of 1,5 cm and a nebari of 8 cm. The plant is grown in an oval glazed stoneware pot whose dimensions are 27x19xH5 cm.
Rhododendron Indicum - Azalea - 45 cm Rhododendron Indicum - Azalea - 45 cm 2
Available
Flower Bonsai

Rhododendron Indicum - Azalea - 45 cm

Azalea - Rhododendron
Y45PTE-5628
€422.73
Maple bonsai characterised by a height without pot of 37 cm. The plant, in neagari style, is grown in a round enamelled stoneware pot whose dimensions are Ø 20 x 8 cm. For shipping by courier or more information please contact us
Bonsai of Azalea of 24 cm | Cloud cream pot Bonsai of Azalea of 24 cm | Cloud cream pot 2
  • New
Available
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Rhododendron indicum - Azalea - 24 cm

Azalea - Rhododendron
Y45NE-7459
€86.36
Bonsai of Azalea characterized by a height without pot of 18 cm, trunks size of 0,5-1 cm and a nebari of 6 cm. The plant is grown in a cloud glazed stoneware pot whose dimensions are 15x11,5xH6 cm.
Bonsai of Azalea of 40 cm | Cloud stoneware pot Bonsai of Azalea of 40 cm | Cloud stoneware pot 2
  • New
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Rhododendron indicum Hakushikan - Azalea - 40 cm

Azalea - Rhododendron
Y45MAII-7446
€2,909.09
Unique specimen bonsai of Azalea characterized by a height without pot of 32 cm, a trunk size of 6 cm and a nebari of 13 cm. The plant is grown in a cloud unglazed stoneware pot whose dimensions are 25x20xH8 cm.
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Available
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Rhododendron indicum 'Hi no maru' - Azalea - 42 cm

Azalea - Rhododendron
Y45PNE-7466
€450.00
Azalea bonsai measuring 30.5 cm in height without the pot, with trunks 1–1.5 cm in diameter and a nebari of 5 cm. The plant is grown in a round plastic pot measuring Ø29 x H11.5 cm.
Rhododendron Indicum - Azalea - 36 cm Rhododendron Indicum - Azalea - 36 cm 2
Available
Flower Bonsai

Rhododendron Indicum - Azalea - 36 cm

Azalea - Rhododendron
Y45LEII-5632
€1,363.64
Azalea bonsai characterised by a height without pot of 27.5 cm, trunk size of 8 cm and nebari of 15 cm. The plant is grown in an enamelled stoneware pot whose dimensions are 24 x 18 x H 8.5 cm.
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Available
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Rhododendron indicum Hoshi no kagayaki - Azalea - 44 cm

Azalea - Rhododendron
Y45LLE-7369
€104.55
Azalea bonsai characterised by its height without pot of 36.5 cm, nebari of 3.5 cm and trunk size of 1 cm. The plant is grown in a rectangular glazed stoneware pot whose dimensions are 16x13xH7.5 cm.
Bonsai of Azalea of 34 cm | Cream oval pot Bonsai of Azalea of 34 cm | Cream oval pot 2
  • New
Available
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Rhododendron indicum - Azalea - 34 cm

Azalea - Rhododendron
Y45LANI-7451
€1,172.73
Bonsai of Azalea characterised by its height without pot of 27,5 cm, a trunk size of 7 cm and a nebari of 12 cm. The plant is grown in an oval glazed stoneware pot whose dimensions are 21x16xH6,5 cm.
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Available
Gift sets

Azalea Set & Miniguide

Azalea - Rhododendron
SET136087
€31.82
The set consists of Rhododendron Indicum bonsai and Miniguide AZALEA BONSAI: Bonsai are living beings and each one is different from the others, so the plant you'll receive will be similar but not the same as the one you see in the photo Height with pot: 27 cm Height without pot: 21,5 cm - may vary with the vegetative growth of the plant Trunk: 1...
Rhododendron Indicum Korin - Azalea - 87 cm Rhododendron Indicum Korin - Azalea - 87 cm 2
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Rhododendron Indicum Korin - Azalea - 87 cm

Azalea - Rhododendron
Y45OTII-5629
€7,818.18
Azalea bonsai characterised by its height without pot of 72.5 cm, trunk size of 16 cm and nebari of 35 cm. The plant, in reverse broom style, is a unique specimen and is grown in an unglazed stoneware pot whose dimensions are 51 x 43 x H 14.5 cm. For shipping by courier or more information please contact us
Azalea bonsai 61 cm | Rectangular blue pot Azalea bonsai 61 cm | Rectangular blue pot 2
  • New
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Rhododendron indicum Hanabin - Azalea - 61 cm

Azalea - Rhododendron
Y45LOI-7464
€163.64
Bonsai of Azalea characterized by a height without pot of 54 cm, a trunk size of 2,5 cm and a nebari of 8 cm. The plant is grown in a rectangular glazed stoneware pot whose dimensions are 20,5x15,5xH7 cm.
Bonsai of Azalea of 32 cm | Oval turquoise pot Bonsai of Azalea of 32 cm | Oval turquoise pot 2
  • New
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Rhododendron indicum - Azalea - 32 cm

Azalea - Rhododendron
Y45LAI-7450
€109.09
Bonsai of Azalea characterized by a height without pot of 26,5 cm, a trunk size of 1 cm and a nebari of 3 cm. The plant is grown in an oval glazed stoneware pot whose dimensions are 14x10,5xH5,5 cm.
Azalea bonsai 38 cm | Round green-turquoise pot Azalea bonsai 38 cm | Round green-turquoise pot 2
Out-of-Stock
Flower Bonsai

Rhododendron indicum ryusei - Azalea - 38 cm

Azalea - Rhododendron
Y45ATE-7265
€240.91
Bonsai of Azalea characterized by a height without pot of 29 cm, a trunk size of 1,5 cm and a nebari of 5 cm. The plant is grown in a round glazed stoneware pot whose dimensions are Ø22xH9 cm.
Bonsai of Azalea of 72 cm | Rectangular brown plastic pot Bonsai of Azalea of 72 cm | Rectangular brown plastic pot 2
  • New
Available
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Rhododendron indicum 'Hanabin' - Azalea - 72 cm

Azalea - Rhododendron
Y45MNE-7463
€359.09
Bonsai of Azalea characterized by a height without pot of 59 cm, and a trunk size of 2,5 cm. The plant is grown in a rectangular plastic pot whose dimensions are 32,5x24,5xH13 cm.
Bonsai of Azalea of 95 cm | Cloud stoneware pot Bonsai of Azalea of 95 cm | Cloud stoneware pot 2
  • New
Available
Masterpiece Bonsai

Rhododendron indicum - Azalea - 95 cm

Azalea - Rhododendron
Y45AMII-7449
€2,090.91
Unique specimen bonsai of Azalea characterized by a height without pot of 75,5 cm, a trunk size of 11 cm and a nebari of 21 cm. The plant is grown in a cloud unglazed stoneware pot whose dimensions are 48x42xH19,5 cm.
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