Germination Guide

Click on a species name below to see it's germination tips.
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Caltha leptosepala ssp. howellii

!

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.

A

Sow @ 20°C. Seed germinates within 3 months.
bog plant; stand pot in 3 cm water; raise temperature very slowly after germination
Caltha biflora

!

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.

*

This species needs special care as described.
bog plant; stand pot in 3 cm water; raise temperature very slowly after germination
Caltha leptosepala

!

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.

*

This species needs special care as described.
bog plant; stand pot in 3 cm water; raise temperature very slowly after germination
Caltha leptosepala v. howellii

!

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.

A

Sow @ 20°C. Seed germinates within 3 months.
bog plant; stand pot in 3 cm water; raise temperature very slowly after germination
Caltha palustris

!

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

5

Germination is successful only when GA3 is used.
bog plant; stand pot in 3 cm water; raise temperature very slowly after germination
Calycanthus chinensis

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Calycanthus floridus 'Carolina Allspice'

A

Sow @ 20°C. Seed germinates within 3 months.
Calycanthus floridus 'Purpurea'

A

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

A

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

4

Germination is improved by using GA3.
Calylophus hartwegii ssp. fendleri

A

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

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

Camassia leichtlinii 'Alba'

F

Sow @ 4°C.
Camassia leichtlinii ssp. leichtlinii

F

Sow @ 4°C.
Camassia quamash ssp. azurea

G

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

F

Sow @ 4°C.
Camassia cusickii 'Zwanenburg'

F

Sow @ 4°C.
Camassia leichtlinii

F

Sow @ 4°C.
Camassia leichtlinii 'Coerulea'

F

Sow @ 4°C.
Camassia leichtlinii ssp. suksdorfii ex 'Alba'

F

Sow @ 4°C.
Camassia leichtlinii ssp.leichtlinii

F

Sow @ 4°C.
Camassia quamash

F

Sow @ 4°C.
Camassia quamash 'Blue Melody'

F

Sow @ 4°C.
Camassia quamash ssp. quamash

F

Sow @ 4°C.
Camassia scilloides

G

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

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Camellia oleifera 'Plain Jane'

A

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

6

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

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.
store seed moist in refrigerator
Camellia sp.

A

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

6

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

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
Campanula alliariifolia ssp. alliariifolia

J

Sow @4°C for 3 weeks, then place @20°C.
Campanula carpatica 'Rapido Blue'

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula carpatica f. alba

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula fenestrellata subsp. istriaca

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula garganica subsp. cephallenica

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula glomerata v. alba

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.
Campanula grandis

A

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

?

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.
Campanula latifolia var. alba

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.
Campanula punctata f. albiflora ex 'Alba'

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.
Campanula 'Kent Belle'

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.
Campanula 'Samantha'

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula 'Stansfieldii'

A

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

A

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

A

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

A

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

G

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

*

This species needs special care as described.
store dry for a year; provide light during warm part of cycle
Campanula argaea

A

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

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...
Campanula aucheri

A

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

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

Campanula barbata

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula barbata 'Darkest of All'

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula barbata v. alba

A

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

A

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

A

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

?

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.
Campanula calaminthifolia

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

Campanula carnica

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula carpatica 'Blue Clips'

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula carpatica 'Glokkentappich Hellblau'

A

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