Primula

Primula Candelabra hybrid

Germination Tips

A

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

Primula grandis

Germination Tips

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'

Germination Tips

G

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

Primula macrophylla v. moorcraftiana

Germination Tips

A

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

Primula matthioli

Germination Tips

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 x pruhonicensis

Germination Tips

?

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

Germination Tips

G

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

Primula 'Lilian Harvey'

Germination Tips

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'

Germination Tips

!

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

Germination Tips

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

Germination Tips

A

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

Primula alpicola

Germination Tips

A

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

Primula amoena

Germination Tips

A

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

Primula angustifolia

Germination Tips

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

Germination Tips

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

Germination Tips

A

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

Primula auricula

Germination Tips

!

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'

Germination Tips

G

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

Primula auricula ssp. bauhinii

Germination Tips

!

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

Germination Tips

!

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.
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