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.

Taxus brevifolia

C

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

*

This species needs special care as described.

A

Sow @ 20°C. Seed germinates within 3 months.
water sparingly
Tecoma stans var. sambucifolia

A

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

A

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

A

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

A

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

!

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.

N

Sow directly in garden.
Telesonix jamesii

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

3

Requires light or the small seeds should be surface sown. See https://www.youtube.com/watch?v=RgkXUSI1GWo&index=1&list=UUJfYCNSWCIuOB2...
25% germination
Tellima grandiflora

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...
Telopea speciosissima

A

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

A

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

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

Tephroseris flammea

D

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

2

Requires darkness.
Tephrosia virginiana

A

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

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
Tetraneuris acaulis

A

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

A

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

A

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

A

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

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.
sow outdoors in spring
Teucrium botrys

A

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

B

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

F

Sow @ 4°C.
Teucrium 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.
Teucrium halacsyanum

A

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

A

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

F

Sow @ 4°C.
Teucrium rotundifolium

A

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

B

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

!

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.

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 rochebruneanum 'Lavender Mist'

!

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.

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

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 delavayi

!

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.
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.