Germination Guide

Click on a species name below to see it's germination tips.
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Veronica officinalis

3

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

B

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

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

Veronica prostrata

B

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

3

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

A

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

B

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

3

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

B

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

3

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

B

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

3

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

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

Veronica spicata

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata 'Giles Van Hees'

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata 'Nana Blauteppich'

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata 'Red Fox'

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata 'Sightseeing'

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata ssp. incana

A

Sow @ 20°C. Seed germinates within 3 months.
Veronica spicata subsp. incana 'Nana'

A

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

A

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

A

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

3

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

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.
Veronicastrum album

B

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

A

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

3

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

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.
Veronicastrum sp.

3

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

J

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

3

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

6

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

J

Sow @4°C for 3 weeks, then place @20°C.
poor germination
Veronicastrum virginicum 'Fascination'

J

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

3

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

6

Requires scarification. Nick or rub between sheets of sandpaper. See https://youtu.be/icB9HrqdQqU
poor germination
Veronicastrum virginicum 'Lavendelturm'

J

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

3

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

6

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

J

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

3

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

6

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

A

Sow @ 20°C. Seed germinates within 3 months.
Viburnum dentatum 'Blue Muffin'

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

Viburnum farreri

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

Viburnum nudum var. cassinoides

8

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

D

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

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

Viburnum carlesii

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.
Viburnum carlesii 'Compactum'

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.
Viburnum cassinoides

D

Use repeated cycles of 20°C, then 4°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.
Viburnum edule

D

Use repeated cycles of 20°C, then 4°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.
Viburnum fragrans

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.
Viburnum lantanoides

D

Use repeated cycles of 20°C, then 4°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.
Viburnum lentago

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.
Viburnum nudum var. cassinoides

8

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

D

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

D

Use repeated cycles of 20°C, then 4°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.
seedlings do not overwinter in outdoor temperatures
Viburnum sargentii

D

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

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.
Viburnum veitchii

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.
Vicia faba

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.

N

Sow directly in garden.
Vicia cassia

A

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

N

Sow directly in garden.

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
Vicia cracca

A

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

N

Sow directly in garden.

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
Vicia sepium

A

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

N

Sow directly in garden.

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
Vicia sp.

A

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

N

Sow directly in garden.

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
Vicia sylvatica

A

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

N

Sow directly in garden.

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
Vicia sylvestris

A

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

A

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

4

Germination is improved by using GA3.
Viola montana

?

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.

!

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.
Viola nephrophylla

!

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

Viola pubescens

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Viola 'Antique Lace'

!

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.

J

Sow @4°C for 3 weeks, then place @20°C.
Viola 'Dancing Geisha'

?

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.

!

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.
Parentage is unknown but Viola eizanensis or chaerophylloides are good prospects and germinate well. Sow immediately. The viability of viola seeds is short and both possible parental species propagate best with fresh seed. Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Viola 'Freckles'

!

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.

D

Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.
dry storage for > 6 months is fatal
Viola 'Nigra'

!

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.

2

Requires darkness.

A

Sow @ 20°C. Seed germinates within 3 months.
Viola 'Rodney Davey'

!

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.

F

Sow @ 4°C.
Viola aetolica

!

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.

F

Sow @ 4°C.