Germination Guide

Click on a species name below to see it's germination tips.
Search for a genus or species by entering specific words or parts of words.
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Maackia amurensis

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.

1

Resents transplanting.

2

Requires darkness.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ

*

This species needs special care as described.
soak in hot water
Machaeranthera coloradoensis

A

Sow @ 20°C. Seed germinates within 3 months.
Macleaya cordata

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...
Macleaya microcarpa

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Maclura pomifera

A

Sow @ 20°C. Seed germinates within 3 months.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash and rinse daily in clean water for 1-5 days, then in detergent daily for about 2-5 days
Macronema discoidea

A

Sow @ 20°C. Seed germinates within 3 months.
Macuna sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Magnolia amoena

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
wash off pulpy coat completely in daily detergent washes
Magnolia x soulangeana

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

wash off pulpy coat completely in daily detergent washes
Magnolia ashei

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Magnolia denudata 'Forrest's Pink'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Magnolia grandiflora

J

Sow @4°C for 3 weeks, then place @20°C.

2

Requires darkness.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.
wash off pulpy coat completely in daily detergent washes
Magnolia kobus

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Magnolia sieboldii

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

wash off pulpy coat completely in daily detergent washes
Magnolia soulangeana

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

wash off pulpy coat completely in daily detergent washes
Magnolia species

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

wash off pulpy coat completely in daily detergent washes
Magnolia stellata

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes, store seeds @ 4°C
Magnolia stellata 'Royal Star'

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

wash off pulpy coat completely in daily detergent washes, store seeds @ 4°C
Magnolia tripetala

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ

*

This species needs special care as described.
many infertile seeds
Magnolia wilsonii

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Magnolia x brooklynensis 'Yellow Bird'

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

J

Sow @4°C for 3 weeks, then place @20°C.
wash off pulpy coat completely in daily detergent washes
Magnolia X loebneri

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
wash off pulpy coat completely in daily detergent washes
Magnolia x loebneri 'Leonard Messel'

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
wash off pulpy coat completely in daily detergent washes
Magnolia x loebneri 'Merrill'

*

This species needs special care as described.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
wash off pulpy coat completely in daily detergent washes
Mahonia aquifolium

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Mahonia hybrid

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Mahonia repens

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

*

This species needs special care as described.
wash off pulpy coat completely in daily detergent washes
Maianthemum bifolium v. kamtschaticum

E

Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Maianthemum canadense

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.
Maianthemum dilatatum

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for approximately 7 days. Discard water.

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.
Maianthemum racemosum

*

This species needs special care as described.

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
place in moist sand in shade x 1 year; sow as soon as radicle appears
Maianthemum stellatum

D

Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.
Malus ioensis

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Malus toringo ssp. sargentii

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Malus baccata

*

This species needs special care as described.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
20°C x 2 weeks then 4°C x 14 weeks
Malus sargentii

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Malus toringo ssp. sargentii

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU
Malva officinalis

A

Sow @ 20°C. Seed germinates within 3 months.
Malva parviflora

K

Sow @ 10°C. Most species for which we suggest this temperature will also germinate at 20°C, but prefer the cooler temperature for sturdy growth.

N

Sow directly in garden.
Malva alcea v. fastigiata

F

Sow @ 4°C.
Malva arborea

A

Sow @ 20°C. Seed germinates within 3 months.
Malva fastigiata

F

Sow @ 4°C.
Malva moschata

A

Sow @ 20°C. Seed germinates within 3 months.
Malva moschata 'Rosea'

A

Sow @ 20°C. Seed germinates within 3 months.
Malva moschata f. alba

A

Sow @ 20°C. Seed germinates within 3 months.
Malva parvifora

K

Sow @ 10°C. Most species for which we suggest this temperature will also germinate at 20°C, but prefer the cooler temperature for sturdy growth.

N

Sow directly in garden.
Malva sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Malva sylvestris

A

Sow @ 20°C. Seed germinates within 3 months.
Malva sylvestris 'Primley Blue'

A

Sow @ 20°C. Seed germinates within 3 months.
Malva sylvestris v. mauritania 'Zebrina'

A

Sow @ 20°C. Seed germinates within 3 months.
Malva sylvestris var. mauritiana

A

Sow @ 20°C. Seed germinates within 3 months.
Margyricarpus pinnatus

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.
Margyricarpus setosus

!

Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

A

Sow @ 20°C. Seed germinates within 3 months.
Marrubium incanum

A

Sow @ 20°C. Seed germinates within 3 months.
Marrubium sp.

J

Sow @4°C for 3 weeks, then place @20°C.
Marrubium vulgare

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Marshallia grandiflora

A

Sow @ 20°C. Seed germinates within 3 months.
Massonia pustulata

A

Sow @ 20°C. Seed germinates within 3 months.
Massonia depressa

A

Sow @ 20°C. Seed germinates within 3 months.
Matricaria breviradiata

?

We have incomplete information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.

A

Sow @ 20°C. Seed germinates within 3 months.