Laburnum alpinum
Laburnum sp.
Laburnum x watereri 'Fastigiata'
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Lagerstroemia indica ex 'Supersonic'
Lagurus ovatus
Lamium sp.
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Lapeirousia anomatheca
?
We have no 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.
Lapeirousia divaricatum
?
We have no 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.
Lapeirousia laxa
sow seed in spring, may bloom in 18 months
Larix kaempferi
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Laserpitium gallicum
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.
Laserpitium latifolium
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.
Lathyrus aureus
Lathyrus aureus
Lathyrus cicera
Lathyrus davidii
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus japonicus
Lathyrus latifolius
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus latifolius 'Albus'
plant in deep pot; does not need scarifying
Lathyrus laxiflorus
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus odoratus
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus rotundifolius
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus sativus
Lathyrus sp.
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus sylvestris
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus sylvestris 'Rose Pearl'
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus tingitanus
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus tuberosus
A
Sow @ 20°C. Seed germinates within 3 months.
1
Resents transplanting.
2
Requires darkness.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
plant in deep pot
Lathyrus vernus
plant in deep pot
Lathyrus vernus 'Alboroseus'
plant in deep pot
Lathyrus vernus 'Rainbow'
plant in deep pot
Lathyrus vernus 'Rosenelfe'
plant in deep pot
Lathyrus vernus albo-roseum
plant in deep pot
Lathyrus vernus mix
plant in deep pot
Lathyrus vitifolia
Laurentia sp.
Laurentia tenella
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Lavandula angustifolia
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavandula angustifolia 'Hidcote'
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavandula angustifolia 'Munstead'
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavandula multifida
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.
Lavandula multifida 'Spanish Eye'
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.
Lavandula sp.
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavandula stoechas
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavandula stoechas ssp. pedunculata
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
Lavatera tauricensis
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.