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Delonix decaryi

Decary's Poinciana

A small, dry deciduous tree native to Madagascar with a compact crown on a smooth, swollen trunk. The orchid-like flowers are white and red and appear during the dry season. In cultivation it is best suited to a warm temperate or tropical climate in USDA Zones 10 and 11. Seeds should be scarified or briefly immersed in boiling water before sowing.

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germination comments by our visitors
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Also see plant cultivation comments below.

Seeds from this species ...

... are very easy to germinate and need up to 3 months to sprout.
Although the time says 3 months, they will actually germinate in a lot less time if you follow these to the letter. Place the seed in a ceramic cup, covering the bottom with seed to 1 seeds depth. Add an amount of water just off boiling to cover the seeds to a depth equal to the diameter of the seed. Soak for 5 minutes, then add an amount of cool water (stops the seeds cooking) and then soak for 72 hours (that's right 3 days). Change the water daily and use warm water to re-fill. Once the seeds have visibly swollen then, and only then, sow in good soil to a depth equal to the diameter of the seed and germinate at 75 - 85 Deg F. In temperate areas use pots and a propagator to get the high temperatures required to allow for germination. Seed that does not swell should not be sown, instead repeat the boiling water/soak process until it does. Un-swollen seed has to gain its moisture from the soil and this process can take months, even years in order for the seed to get enough water to germinate. Like I say, get them to swell during the soaking process and they can sprout in a few weeks.
Submitted on 05/06/2013 by Robert Boatman

... are very easy to germinate and need up to 1 month to sprout.
Rubbed seeds on sandpaper briefly and soaked overnight. Seeds were swollen then and germinated in three days. Extremely easy grower.
Submitted on 31/05/2013 by one of our visitors

... are easy to germinate and need up to 1 month to sprout.
Sow delonix decaryi is easy and poses no particular problems. The seeds are very thick, and must be pre-soak in warm water for 48-72 hours. Seeding can be done with temperatures of 30-40 ° C, in deep pots to accommodate the taproot and rich soils (a part of acid peat and a part of perlite). For the sprouting, it need at least 2-6 weeks. If nothing happens, do not throw away the seeds, but keep them and try again the following year. The humidity must be high until the plants are born, and then decreased after the formation of the first true leaves. Once born, is a plant of rapid growth, that after a few months begins to form a nice bark.
Submitted on 12/12/2012 by Gabriele Simone

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plant cultivation comments by our visitors
Also see germination commnets above.

Plants from this species ...

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If you wish to read more on palm cultivation, we highly recommend Ornamental Palm Horticulture by Timothy K. Broschat and Alan W. Meerow, available in our bookshop.

Ratings and comments reflect individual experiences and the views of our visitors. They do not necessarily describe the most appropriate methods, nor are they necessarily valid for all seeds or plants of this species. Germination and plant cultivation success depends on many different factors; nevertheless, these experiences will hopefully aid you in your effort to get the best germination results from our seeds and the best growth results from your plants.

We recommend:
The Encyclopedia of Cultivated Palms

The Encyclopedia of Cultivated Palms
by Robert Lee Riffle, Paul Craft, Scott Zona

2nd edition
Completely revised and updated

Hardcover - 528 pages
11 x 8.5 inches

Our rating:
Suitable for: all

The Encyclopedia of Cultivated Palms is the definitive account of all palms that can be grown for ornamental and economic use. Palms are often underutilized as a result of their unfamiliarity—even to tropical gardeners. To help introduce these valuable plants to a new audience, the authors have exhaustively documented every genus in the palm family.
825 species are described in detail, including cold hardiness, water needs, height, and any special requirements. Generously illustrated with more than 900 photos, including photos of several palm species that have never before appeared in a general encyclopedia, The Encyclopedia of Cultivated Palms is as valuable as an identification guide as it is a practical handbook. Interesting snippets of history, ethnobotany, and biology inform the text and make this a lively catalog of these remarkable plants.

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