Viburnum burkwoodii 🔊 Family Viburnaceae🔊 Genus Viburnum🔊
Also published as Viburnum x burkwoodii . You are in the right place.
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About the plant What it is and where it grows — not part of any germination protocol.
Flower Pinkish white Wikipedia Toxicity is noted only where a source states it. No note here is not a finding of safety.
Source: Wikipedia — Wikipedia contributors.
Worth knowing The Burkwood viburnum is a garden-made hybrid of Viburnum carlesii and Viburnum utile, grown for its early, strongly scented flowers. Wikipedia: Viburnum × burkwoodii For a May 3 last frost, start this around October 28, 2027 — about 6 months ahead.
This one takes two seasons. Start in October 2027 to plant out in May 2028.
Too late for spring 2027 — that plan needed starting on October 27, 2026. Here is the plan for 2028.
Using a national average last frost of May 3, which is wrong for most places. Put in your zip code for your own dates. Plant words explained .
Protocol N. C. Deno, 1993 Difficulty Moderate Rated by us, not by the source.
1 Clean the flesh off the seed
2 Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
3 Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C
about 3 months from start to step 3. Germination happens during step 3, in 70 days.
75% germination in 35–70 days.
Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Viburnum p. 228Public domain Show the original text Viburnum (Caprlfollaceae). Viburnums divide into two groups. The first group germ. in a 40-70 pattern. The cotyledons develop within a week or two after germination. This group is adapted to germination in spring and immediate leaf development and growth. The second group germ. in a 40-70-40 pattern with extension into a 40-70-40-70-40 pattern. Germination takes place in a cycle at 40. The seedlings must be kept at 40 for two to three months after radicle development is complete in order for the cotyledons to develop properly on shifting to 70. Puncturing. the seed coat had no effect in three species. All seed was WC for 1-2 w. Germination was stimulated by GA-3 in V. burkwoodi is a 40-70 germinator. Fresh seed or seed DS 6 m at 70 or 40 germ. 40-70(75-80% in 5-10 w) and 70(none). The cotyledons develop within a week or two after radicle emergence. Grinding a hole through the seed coat had no effect: Fresh WC seed germ.. similarly, but seed collected in February gave lower germination. Seed Germination Theory and Practice, 2nd ed., Ch. 20, Viburnum p. 228. 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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