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Euonymus maackii

Hamilton's Spindletree

Family CelastraceaeGenus Euonymus

A large spreading tree with long drooping leafy branches, shading a lawn and low building
The whole plantTaken by FanghongCC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

The plant

Habit
Perennial, TreeExtension Gardener Plant Toolbox
Habit
shrub or treePlants of the World Online
Height
15-25 ft4.6-7.6 mExtension Gardener Plant Toolbox
Spread
15-25 ft4.6-7.6 mExtension Gardener Plant Toolbox
Flower
Gold/Yellow, Green, Orange, Pink, WhiteExtension Gardener Plant Toolbox
Blooms
SpringExtension Gardener Plant Toolbox
Native range
Amur, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia and elsewhereGBIF Backbone Taxonomy
Hardiness zones
4-8Extension Gardener Plant Toolbox

Growing conditions

Sun
Full sun; Partial ShadeExtension Gardener Plant Toolbox
Soil
Clay, Loam (Silt), SandExtension Gardener Plant Toolbox
Soil pH
Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture
Good Drainage, Moist, Occasionally DryExtension Gardener Plant Toolbox

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Protocol

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

  1. Clean the flesh off the seed

  2. Leach in running water

    Duration: 7 days

    Washed and cleaned daily for 7 days.

  3. Cold moist stratification

    Temperature: 40°F 4°C

7 days from start to step 3. Germination happens during step 3, in 35 days.

90% germination in 35 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Euonymus p. 141Public domain
Show the original text
Euonymus. (Celastraceae). Germination was low and extended in E. bungeana seed was WC for 7 d in water. This seed either fresh or after DS 6 m at 70 germ. 40(90-100% largely in 5th w). When either fresh or DS seed was sown at 70, germination extended over 2-3 cycles with comparable amounts of germination in each cycle.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Euonymus p. 141. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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