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.
Click Reset anytime to start a new search.

Gagea pauciflora
Full listing

?

Posted on October 10, 2011
We have no 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.
Gaillardia 'Goblin'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia 'Kobold'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia 'Royal Monarch Red'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia aristata
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia aristata 'Amber Wheels'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia cross
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia grandiflora
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia pulchella
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia pulchella 'Red Plume'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia sp.
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia x grandiflora
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia x grandiflora 'Gallo'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gaillardia x grandiflora 'Goblin'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Galanthus elwesii
Full listing

!

Posted on August 3, 2011
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.

H

Posted on August 3, 2011
Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.

*

Posted on August 3, 2011
This species needs special care as described.
grow seedlings at cool temperature - best achieved by sowing in open ground
Galanthus ikariae
Full listing

K

Posted on August 3, 2011
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

Posted on August 3, 2011
Sow directly in garden.
Galanthus woronowii
Full listing

K

Posted on August 3, 2011
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

Posted on August 3, 2011
Sow directly in garden.
Galax urceolata
Full listing

K

Posted on August 3, 2011
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.
Galega officinalis
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.
grow on @ 10°C
Galega orientalis
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Galega trifoliata
Full listing

L

Posted on August 3, 2011
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
After about 3 months at 20 deg, put them into 4 deg for 6 months. They sprout in the cold.
Galeopsis speciosa
Full listing

G

Posted on August 3, 2011
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

2

Posted on August 3, 2011
Requires darkness.
Galium glaucum
Full listing

?

Posted on October 10, 2011
We have no 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.
Galium nigellastrum
Full listing

?

Posted on October 10, 2011
We have no 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.
Galium odoratum
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Galium tricornutum
Full listing

!

Posted on August 3, 2011
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.

*

Posted on August 3, 2011
This species needs special care as described.
outdoors in autumn
Galtonia candicans
Full listing

!

Posted on August 3, 2011
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

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

2

Posted on August 3, 2011
Requires darkness.
Galtonia viridiflora
Full listing

B

Posted on August 3, 2011
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Gaultheria adenothrix
Full listing

G

Posted on August 3, 2011
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

8

Posted on August 3, 2011
Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

Posted on August 3, 2011
This species needs special care as described.
peat based medium, prone to damping off
Gaultheria fragrantissima
Full listing

G

Posted on August 3, 2011
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

8

Posted on August 3, 2011
Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

Posted on August 3, 2011
This species needs special care as described.
peat based medium, prone to damping off
Gaultheria procumbens
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

8

Posted on August 3, 2011
Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.
Gaultheria shallon
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.
Gaultheria sp.
Full listing

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.
Gaura lindheimeri
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

2

Posted on August 3, 2011
Requires darkness.
Gaylussacia baccata
Full listing

C

Posted on August 3, 2011
Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
Gazania krebsiana
Full listing

K

Posted on August 3, 2011
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.

2

Posted on August 3, 2011
Requires darkness.

*

Posted on August 3, 2011
This species needs special care as described.
grow cool
Gazania linearis
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.
Gelasine coerulea
Full listing

?

Posted on October 10, 2011
We have no 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.
Genista albida
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista dalmatica
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista hispanica ssp. occidentalis
Full listing

G

Posted on August 3, 2011
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista horrida
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

1

Posted on August 3, 2011
Resents transplanting.

6

Posted on August 3, 2011
Requires scarification. Nick or rub between sheets of sandpaper.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista michelii
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista pilosa 'Vancouver Gold'
Full listing

L

Posted on August 3, 2011
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista procumbens
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista sagittalis
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

1

Posted on August 3, 2011
Resents transplanting.

6

Posted on August 3, 2011
Requires scarification. Nick or rub between sheets of sandpaper.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista sagittalis ssp. delphinensis
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

1

Posted on August 3, 2011
Resents transplanting.

6

Posted on August 3, 2011
Requires scarification. Nick or rub between sheets of sandpaper.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista subcapitata
Full listing

L

Posted on August 3, 2011
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.

1

Posted on August 3, 2011
Resents transplanting.

6

Posted on August 3, 2011
Requires scarification. Nick or rub between sheets of sandpaper.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Genista sylvestris
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista sylvestris v. pungens
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

Posted on August 3, 2011
This species needs special care as described.
soak in hot water
Genista tinctoria
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

1

Posted on August 3, 2011
Resents transplanting.

6

Posted on August 3, 2011
Requires scarification. Nick or rub between sheets of sandpaper.

7

Posted on August 3, 2011
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Gentiana 'Blue Cross'
Full listing

!

Posted on August 3, 2011
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.

*

Posted on August 3, 2011
This species needs special care as described.

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.

5

Posted on August 3, 2011
Germination is successful only when GA3 is used.

B

Posted on August 3, 2011
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
avoid pricking out individually, transplant seedlings in clumps
Gentiana 'Blue Herald'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana 'Frei'
Full listing

D

Posted on August 3, 2011
Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana 'Shusui Blue'
Full listing

A

Posted on August 3, 2011
Sow @ 20°C. Seed germinates within 3 months.

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana acaulis
Full listing

D

Posted on August 3, 2011
Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.

4

Posted on August 3, 2011
Germination is improved by using GA3.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana acaulis 'Rannoch'
Full listing

D

Posted on August 3, 2011
Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.

4

Posted on August 3, 2011
Germination is improved by using GA3.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana affinis
Full listing

L

Posted on August 3, 2011
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana affinis pneumonanthe
Full listing

L

Posted on August 3, 2011
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps
Gentiana andrewsii
Full listing

E

Posted on August 3, 2011
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.

3

Posted on August 3, 2011
Requires light or the small seeds should be surface sown.

*

Posted on August 3, 2011
This species needs special care as described.
avoid pricking out individually, transplant seedlings in clumps