Germination Guide

Click on a species name below to see it's germination tips.
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Teucrium scorodonia 'Crispum'

A

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

G

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

A

Sow @ 20°C. Seed germinates within 3 months.
Teucrium x lucidrys

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum aquilegiifolium v. intermedium

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum cf. foetidum

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.
Thalictrum flavum ssp. glaucum

B

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

J

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

4

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

Thalictrum rochebrunianum 'Lavender Mist'

4

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

Thalictrum sphaerostachyum

3

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

A

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

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.
Thalictrum alpinum

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum aquilegiifolium 'Album'

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum aquilegiifolium 'Purpureum'

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum aquilegiifolium 'Sparkler'

A

Sow @ 20°C. Seed germinates within 3 months.
Thalictrum aquilegiifolium var. intermedium

A

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

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

Thalictrum chelidonii

B

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

H

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

A

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

!

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.

*

This species needs special care as described.

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

germinate in peat-based medium, prefers acid soil
Thalictrum dioicum

*

This species needs special care as described.

5

Germination is successful only when GA3 is used. See http://botanicallyinclined.org/fridays-seeds-with-the-ga3-seeds-treatment

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.
Thalictrum dipterocarpum

B

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

A

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

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Thalictrum flavum 'Illuminator'

B

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

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.
Thalictrum foetidum

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.
Thalictrum glaucum

A

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

A

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

D

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

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Thalictrum minus 'Adiantifolium'

B

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

!

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.

*

This species needs special care as described.

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

keep all seed pots x 2 years
Thalictrum pubescens

A

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

4

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

Thalictrum rochebrunnianum 'Lavender Mist'

4

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then 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

Thalictrum simplex ssp. galioides

A

Sow @ 20°C. Seed germinates within 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...
Thalictrum sp.

*

This species needs special care as described.

5

Germination is successful only when GA3 is used. See http://botanicallyinclined.org/fridays-seeds-with-the-ga3-seeds-treatment

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
seed viability < 1 year; Deno notes that some thalictrums, but not all, require GA3 to germinate
Thalictrum speciosissimum

F

Sow @ 4°C.
Thalictrum uchiyamae

G

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

?

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.
Thelesperma burridgeanum 'Phillipine'

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.
Thermopsis caroliniana

!

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.

*

This species needs special care as described.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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

A

Sow @ 20°C. Seed germinates within 3 months.
tiny seed should be scarified with sandpaper
Thermopsis lanceolata

!

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.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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.
tiny seed should be scarified with sandpaper
Thermopsis lupinoides

A

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

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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.
pot deeply; protect from damping off
Thermopsis mollis

A

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

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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.
tiny seed should be scarified with sandpaper
Thermopsis montana

*

This species needs special care as described.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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

A

Sow @ 20°C. Seed germinates within 3 months.
tiny seed should be scarified with sandpaper
Thermopsis smithiana

!

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.

*

This species needs special care as described.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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

A

Sow @ 20°C. Seed germinates within 3 months.
tiny seed should be scarified with sandpaper
Thermopsis villosa

*

This species needs special care as described.

1

Resents transplanting.

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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

A

Sow @ 20°C. Seed germinates within 3 months.
tiny seed should be scarified with sandpaper, pot deeply; protect from damping off
Thlaspi arvense

A

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

A

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

A

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

A

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

A

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

A

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

A

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

A

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