Magnolia grandiflora

Genus Magnolia

A wide white cup flower around a yellow-green cone, among glossy leaves with rust-brown undersides — FlowerDavetheMageCC BY 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
Height: 60-80 ft18-24 mExtension Gardener Plant Toolbox
Spread: 30-50 ft9-15 mExtension Gardener Plant Toolbox
Flower: Cream/Tan, WhiteExtension Gardener Plant Toolbox
Blooms: Spring, SummerExtension Gardener Plant Toolbox
Hardiness zones: 6-10Extension Gardener Plant Toolbox

Growing conditions

Sun: Full sun; Partial ShadeExtension Gardener Plant Toolbox
Soil: Clay, High Organic Matter, Loam (Silt)Extension Gardener Plant Toolbox
Soil pH: Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture: Good Drainage, MoistExtension Gardener Plant Toolbox

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

Source: Extension Gardener Plant Toolbox — NC State Extension.

Protocol

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Clean the flesh off the seed
Leach in running water
Duration: 7 days
Washed and cleaned daily for 7 days.
Sow and cover
Temperature: 70°F 21°C Light: dark

7 days from start to sowing. Then 21 days to germinate.

40% germination in 7–21 days.

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