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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Potentilla fruticosa v. pyrenaica

A

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

2

Requires darkness.
may not require darkness
Potentilla glandulosa

F

Sow @ 4°C.
Potentilla gracilis

A

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

F

Sow @ 4°C.
Potentilla hyparctica

F

Sow @ 4°C.
Potentilla hyparctica 'Nana'

F

Sow @ 4°C.
Potentilla inclinata

A

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

A

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

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...
Potentilla multifidiformis

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Potentilla nepalensis 'Miss Willmott'

A

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

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

Potentilla neumanniana 'Nana'

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

Potentilla nitida

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

Potentilla nivea

F

Sow @ 4°C.
Potentilla palustris

F

Sow @ 4°C.
Potentilla pamirica

A

Sow @ 20°C. Seed germinates within 3 months.
Potentilla pensylvanica v. litoralis

A

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

A

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

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...
Potentilla rupestris

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...
Potentilla rupestris v. pygmea

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.
Potentilla sp.

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

Potentilla taurica

?

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.
Potentilla thurberi

A

Sow @ 20°C. Seed germinates within 3 months.
Potentilla thurberi 'Monarch's Velvet'

A

Sow @ 20°C. Seed germinates within 3 months.
Potentilla thurberi hybrid

A

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

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...
Potentilla tonguei (x)

A

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

A

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

A

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

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

Potentilla verna v. nana

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

Potentilla villosa

A

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

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.
Pratia angulata

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

Prenanthes altissima

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

Prenanthes alba

G

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

?

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.
Primula Candelabra hybrid

A

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

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.
Primula japonica 'Postford White'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Primula macrophylla v. moorcraftiana

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Primula x pruhonicensis

?

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.
Primula primulina

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Primula 'Lilian Harvey'

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.
Primula 'Rowallane Rose'

!

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.

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.
Primula acaulis

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.
Primula algida

A

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

A

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

A

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

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

Primula apennina

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.
Primula aurantiaca

A

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

!

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.
Primula auricula 'Craig Dhu'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Primula auricula ssp. bauhinii

!

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.
Primula auricula v. albocincta

!

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.