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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Campanula persicifolia

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula persicifolia 'Alba Coronata'

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula persicifolia 'Flore Pleno'

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Campanula persicifolia 'Telham Beauty'

A

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

A

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

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

3

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

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 poscharskyana

B

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

A

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

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

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 punctata 'Alba'

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 punctata 'Rubra'

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 punctata f. albiflora 'Nana 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 v. hondoensis

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 pyramidalis

A

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

A

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

A

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

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 raineri

G

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

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 rapunculoides

*

This species needs special care as described.

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.
store dry for a year; provide light during warm part of cycle
Campanula rapunculoides ssp. rapunculoides

*

This species needs special care as described.

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.
A 3 * store dry for a year; provide light during warm part of cycle
Campanula rhomboidalis

A

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

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 rotundifolia

A

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

A

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

A

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

A

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

A

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

A

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

A

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

*

This species needs special care as described.

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

germinates best with stored seed
Campanula sparsa

A

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

B

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

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 stellata

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 stevenii

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 takesimana

A

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

A

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

J

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

J

Sow @4°C for 3 weeks, then place @20°C.
Campanula thyrsoides 'Carniolica'

G

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

A

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

A

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

A

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

A

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

A

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

A

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

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 vidalii

A

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

A

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

A

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

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

*

This species needs special care as described.
protect from slugs, tends not to set viable seed
Campanulastrum americanum

A

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

J

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

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.
roots very brittle
Canna paniculata

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.
roots very brittle
Canna sp.

*

This species needs special care as described.

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

A

Sow @ 20°C. Seed germinates within 3 months.
roots very brittle