Germination Guide

Click on a species name below to see it's germination tips.
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Daboecia cantabrica f. 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.
Daboecia cantabrica '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...
Dactylicapnos scandens

B

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

!

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.
Dactylorhiza elata

A

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

*

This species needs special care as described.
very difficult; grow in moist compost to which has been added soil from parent plant to provide symbiotic fungi or sow outside in spring in acid duff
Dactylorhiza fuchsii

A

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

*

This species needs special care as described.
very difficult; grow in moist compost to which has been added soil from parent plant to provide symbiotic fungi or sow outside in spring in acid duff
Dactylorhiza maculata

A

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

*

This species needs special care as described.
very difficult; grow in moist compost to which has been added soil from parent plant to provide symbiotic fungi or sow outside in spring in acid duff
Dactylorhiza purpurella

*

This species needs special care as described.
Harvais and Hadley improved the germination rate of Dactylorhiza purpurella by sterilizing the seeds with calcium hypochlorite solution until they lost their colour. Also see http://www.lidaforsgarden.com/Orchids/dactylorhiza_eng.htm Also see http://www.leavesnbloom.com/2012/07/northern-marsh-orchid-dactylorhiza.html Also see http://www.leavesnbloom.com/2012/07/northern-marsh-orchid-dactylorhiza.html
Dahlia merckii

A

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

A

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

A

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

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
Dalea purpurea

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
Dalea sp.

A

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

!

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.

6

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

8

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

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Daphne mezereum var. album

6

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

8

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

H

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

6

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

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

Daphne albowiana

D

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

6

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

8

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

D

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

6

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

8

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

H

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

6

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

8

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

6

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

8

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

H

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

!

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.

G

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

N

Sow directly in garden.

6

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

8

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

H

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

6

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

8

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

D

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

6

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

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.
soak in detergent then clean in running water 12-24 hours
Daphne hybrid

*

This species needs special care as described.

6

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

8

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

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.
soak in dish washing detergent then clean in running water 12-24 hours
Daphne kiusiana

6

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

8

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

G

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

!

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.

G

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

N

Sow directly in garden.

6

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

8

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

H

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

6

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

8

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

6

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

8

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

H

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

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

6

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

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.
soak in detergent then clean in running water 12-24 hours
Daphne mezereum

H

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

6

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

8

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

6

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

8

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

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.
Daphne mezereum var. album

6

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

8

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

H

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

*

This species needs special care as described.

6

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

8

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

A

Sow @ 20°C. Seed germinates within 3 months.
soak in detergent then clean in running water 12-24 hours
Daphne oleoides v. glandulosa

A

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

6

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

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.
soak in detergent then clean in running water 12-24 hours
Daphne pontica

*

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...

6

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

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

remove pericarp; soak in detergent then clean in running water 12-24 hours
Daphne pontica ssp.haematocarpa

6

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

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.
Daphne reichsteinii (x)

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

6

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

8

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

*

This species needs special care as described.

6

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

8

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

H

Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged.
soak in detergent then clean in running water 12-24 hours
Daphne tangutica

J

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

6

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

8

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

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

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.
Datisca cannabina

B

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

4

Germination is improved by using GA3.

A

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

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.
Datura innoxia

A

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

A

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

*

This species needs special care as described.
Datura metel 'La Fleur Lilac'

A

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

D

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

A

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

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...
Decaisnea insignis

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

G

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

A

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

A

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

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...
Deinanthe caerulea

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.
Delosperma ashtonii

A

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

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...
Delosperma brunnthaleri

A

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

A

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

A

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

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...