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Ipomoea leptophylla

Bush Moonflower · Bush Morning-glory · Man-of-the-earth

Family ConvolvulaceaeGenus Ipomoea

Two pale lilac funnel flowers with deep magenta throats, opening on a leafy stem
FlowerJim PisarowiczPublic domain

About the plant

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

Habit
tuberous subshrubPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Lavender-pink, purple-redFlora of North America
Native range
Native to the lower 48 statesPLANTS Database

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

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee.

Worth knowing

  • Leptophylla means "fine- or slender-leaved". Bush morning glory, also called manroot, grows from a huge tuber at least 50 cm underground, which can be 50 cm across and weigh as much as 6 kg. The root can only be moved while the plant is dormant. Wikipedia: Ipomoea leptophylla

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around March 23, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 13 days to germinate.

42% germination in 3–13 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ipomoea p. 156Public domain
Show the original text
Ipomoea (Convolvulaceae). I. leptophylla germ. 70(42%, 3-13 d) and 40(19%, 6-11 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ipomoea p. 156. 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.

Protocol 2

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around January 18, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 77 days.

19% germination in 42–77 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Ipomoea p. 156Public domain
Show the original text
Ipomoea (Convolvulaceae). I. leptophylla germ. 70(42%, 3-13 d) and 40(19%, 6-11 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ipomoea p. 156. 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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