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.
Click Reset anytime to start a new search.

Alstroemeria aurea

C

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

*

This species needs special care as described.
try excizing a bit of seed coat after warm cycle; grow seedlings at cool temperature
Alstroemeria aurea 'Lutea'

C

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

*

This species needs special care as described.
try excizing a bit of seed coat after warm cycle; grow seedlings at cool temperature
Alstroemeria hybrid

C

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

2

Requires darkness.

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.
try excizing a bit of seed coat after warm cycle
Alstroemeria ligtu hybrid

*

This species needs special care as described.

2

Requires darkness.

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

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
try excizing a bit of seed coat after warm cycle
Alstroemeria lutea

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
Alstroemeria presliana ssp. australis

?

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.
not hardy, likely a warm germinator
Alstroemeria psittacina

*

This species needs special care as described.

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

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
20% germination; brittle roots transplant poorly
Alstroemeria sp.

*

This species needs special care as described.

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

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
try excizing a bit of seed coat after warm cycle
Alternanthera ficoidea

A

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

A

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

A

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

A

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

2

Requires darkness.

A

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

N

Sow directly in garden.
Althaea taurinensis

A

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

B

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

A

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

B

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

A

Sow @ 20°C. Seed germinates within 3 months.
Alyssum 'Gold Crest'

A

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

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Alyssum bertolonii ssp. bertolonii

A

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

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...
Alyssum cuneifolium

B

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

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.
Alyssum fischerianum

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...
Alyssum handelii

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...
Alyssum idaeum

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...
Alyssum lenense

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...
Alyssum macrocarpum

A

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

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...
Alyssum montanum

A

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

A

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

A

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

J

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

A

Sow @ 20°C. Seed germinates within 3 months.
bottom heat helps
Alyssum saxatile 'Basket of Gold'

A

Sow @ 20°C. Seed germinates within 3 months.
bottom heat helps
Alyssum saxatile 'Citrinum'

A

Sow @ 20°C. Seed germinates within 3 months.
bottom heat helps
Alyssum serpyllifolium

A

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

A

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

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...
Alyssum spinosum 'Roseum'

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...
Alyssum stribrnyi

A

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

A

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

A

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

N

Sow directly in garden.
Amaranthus cruentus

A

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

*

This species needs special care as described.
protect from damping off
Amaranthus hybrid

*

This species needs special care as described.

A

Sow @ 20°C. Seed germinates within 3 months.
protect from damping off
Amaranthus hybridus

A

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

*

This species needs special care as described.
protect from damping off
Amaranthus hypochondriacus

A

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

*

This species needs special care as described.
protect from damping off; grow cool
Amaranthus sp.

A

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

*

This species needs special care as described.
protect from damping off
Amaryllis sp.

!

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.
hydrophilic, sow as soon as seed is ripe; ; will not germinate if seed has dried; if stored, must be put in plastic bag with barely damp vermiculite;Keep them warm during summer, coolish towards the fall and then 4⁰C at the onset of winter. Do not store them in the freezer because the formation of ice crystals will damage cell membranes;
Amberboa muricata

A

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

N

Sow directly in garden.
Amelanchier canadensis

*

This species needs special care as described.
20°x 4 weeks, then expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Ammi majus

A

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

2

Requires darkness.
Ammi visnaga

A

Sow @ 20°C. Seed germinates within 3 months.
Ammi visnaga 'Green Mist'

A

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

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

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.
Amorpha nana

6

Requires scarification. Nick or rub between sheets of sandpaper.  See https://youtu.be/icB9HrqdQqU  Seed coat of Baptisia and Oxytropis and other Fabaceae can be scarified by soaking in boiling water. See http://botanicallyinclined.org/continuing-the-sowing-in-hot-water

G

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

!

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.
Sow 5 mm deep in a pocket of sand in a 9 cm pots which contains well drained soil. Germinate in bright light @ 26 °C. Keep moist, but not too wet. During the dormant period, small plants may still need a little watering.
Ampelopsis brevipedunculata 'Variegata'

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.