General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Dry Mesic
Minimum cold hardiness: Zone 9a -6.7 °C (20 °F) to -3.9 °C (25 °F)
Plant Height: Up to 15 feet or more
Plant Spread: 6 feet
Leaves: Deciduous
Fruit: Dehiscent
Flowers: Showy
Other: Flowers are terminal; plant branches after flowering
Flower Color: White
Flower Time: Spring
Underground structures: Taproot
Suitable Locations: Patio/Ornamental/Small Tree
Uses: Flowering Tree
Resistances: Drought tolerant
Toxicity: Other: when skin is pierced by the spikes, some people can get a nasty reaction.
Propagation: Seeds: Provide light
Self fertile
Start indoors
Can handle transplanting
Propagation: Other methods: Cuttings: Stem
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: With thorns/spines/prickles/teeth
Goes Dormant
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Common names
  • Madagascar Palm

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  • Posted by Baja_Costero (Baja California - Zone 11b) on Jul 13, 2016 3:26 PM concerning plant:
    Spiny tree (not a palm) from southwestern Madagascar with deciduous leaves and white flowers. On the large side for the genus, and the most common Pachypodium in cultivation. Excellent container plant given good drainage, good light, and lots of water in summer. Obeys a seasonal growth cycle with some degree of rest/dormancy in winter, especially in marginal climates. Handle with care during this period (cold sensitive) and provide much less frequent water when the plant is leafless. Flowering begins when the plant is a few years old (age perhaps more important than size) and proceeds over a few months. Flowers are terminal, but the plant will branch afterwards, though maybe only once (with no additional stems). Self fertile. Fruit is a two-horned pod which breaks open when ripe to release large seeds with dandelion-like parachutes.

    Two local forms (var. ramosum and the Ihosy form) have different growth habits. The short and fat Ihosy form often branches at the base. A spineless form was recently (2020) released by the ISI.

    This species and P. geayi account for most of the Pachypodiums in cultivation. Both (usually) have 3 spines associated with each leaf and grow terete, cigar-shaped stems. Both make white flowers. P. geayi is less common, flowers much later (and therefore has a much taller main stem), has fine hairs on new spines and stem, has recurved petals and exserted stamens on flowers. Both species are common and useful stocks for grafting more rot-prone species (eg. brevicaule).
Discussion Threads about this plant
Thread Title Last Reply Replies
This looks like P. lamerei by Baja_Costero Jul 29, 2022 3:24 PM 0

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