Germination Guide

Click on a species name below to see it's germination tips.
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Lilium philadelphicum

J

Sow @4°C for 3 weeks, then place @20°C.
very irregular germination
Lilium philippinense

*

This species needs special care as described.

A

Sow @ 20°C. Seed germinates within 3 months.
plant needs a long warm growing season
Lilium Pink Perfection Group

A

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

*

This species needs special care as described.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium polyphyllum

C

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

*

This species needs special care as described.

D

Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium primulinum

C

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

A

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

*

This species needs special care as described.

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

sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium regale

A

Sow @ 20°C. Seed germinates within 3 months.
Lilium regale 'Album'

A

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

C

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

C

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

A

Sow @ 20°C. Seed germinates within 3 months.
Lilium sargentiae (bulbils)

*

This species needs special care as described.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium sargentiae (seeds)

*

This species needs special care as described.

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
plant needs a long warm growing season
Lilium speciosum

*

This species needs special care as described.

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
plant needs a long warm growing season
Lilium sulphureum (bulbils)

*

This species needs special care as described.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium sulphureum (seeds)

*

This species needs special care as described.

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
plant needs a long warm growing season
Lilium superbum

*

This species needs special care as described.

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
4 months warm, then 4 months cold
Lilium szovitsianum

*

This species needs special care as described.

B

Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
4 months warm, then 4 months cold
Lilium taliense

A

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

*

This species needs special care as described.

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
may require repeated warm-cold cycles
Lilium tsingtauense

C

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

*

This species needs special care as described.

A

Sow @ 20°C. Seed germinates within 3 months.
may take several warm-cold cycles
Lilium wallichianum

*

This species needs special care as described.

A

Sow @ 20°C. Seed germinates within 3 months.
plant needs a long warm growing season
Lilium wardii

C

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

*

This species needs special care as described.

C

Sow @ 20°C for 3 months, then place @ 4°C for 3 months.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium wigginsii

*

This species needs special care as described.
sow in Fall; keep moist over Winter; do not expose to temps below -3C
Lilium x dalhansonii

!

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.

B

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

2

Requires darkness.
Lilium × dalhansonii 'Mrs R.O. Backhouse'

!

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.

2

Requires darkness.

B

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

A

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

A

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

A

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

A

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

A

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

A

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

A

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

A

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

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Linaria purpurea '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.
Linaria purpureum 'Canon Went'

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.
Linaria tristis

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
Linaria aeruginea 'Neon Lights'

A

Sow @ 20°C. Seed germinates within 3 months.
Linaria aeruginea ssp. nevadensis

A

Sow @ 20°C. Seed germinates within 3 months.
Linaria aeruginea ssp. nevadensis 'Gemstones'

A

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

A

Sow @ 20°C. Seed germinates within 3 months.
germinates better if seed is stored for a year
Linaria dalmatica

A

Sow @ 20°C. Seed germinates within 3 months.
Linaria genistifolia ssp. dalmatica

A

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

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.

N

Sow directly in garden.
Linaria purpurea

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...
Linaria purpurea 'Canon J. Went'

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...
Linaria sp.

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.
Linaria supina

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.
Lindelofia anchusoides

A

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

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.
Lindera benzoin

*

This species needs special care as described.

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

Hydrophilic, sow as soon as seed is ripe; If not sown right away after collecting the seeds need to be kept moist at all times to remain viable. For storage 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
Linnaea borealis

!

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.

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

reproduces mainly by stolons; < 3% of seeds viable, very difficult