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How are your seeds growing?  

 
Meconopsis_Matt
Eminent Member

Dear Members. How are your seed growing this year

Quote
Posted : 15/07/2020 10:01 pm
Blue Stu
New Member

This is not a specifically meconopsis question. I have surface-sown 20 Echium fastuosum seeds under an LED desklamp, 5 have seed-leaves & some others are starting to root. How long do seeds need exposure to light to continue to trigger germination? Can I sprinkle some chick-grit over them now to help stop the compost drying out? They were sown 2 weeks ago. 

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ReplyQuote
Posted : 27/07/2020 12:57 pm
Meconopsis_Matt
Eminent Member

From my experience growing rhododendrons under light, it is usually from late winter to early spring time and the plants are taken out of the light when the daylight matches or is near to the artificial light time.

This is a bit harder now as the daylight hours are shortening so if your seedlings have been used to say 16 hours of light you will need to try gradually shortening it but this theoretically will put the seedlings into a closing down mode like going into autumn but presumably you want them to grow some more?

My suggestion is to keep the light static for a few weeks yet and then start to gradually reduce the hours of light as in nature. then hopefully your seedlings will have enough growth and be able to survive the first winter.

 

I am sure there will be some other better qualified people reading this who can perhaps helm.

 

good luck.

 

Matt

ReplyQuote
Posted : 27/07/2020 3:26 pm
Blue Stu
New Member

I understand what you're saying, my question is more about light triggering germination than its seasonal effect but thinking through your comment has led me to conclusions. Trawling the internet gives varied instructions about light/no light. I think any dormancy is via hard seed coats. The seeds would ripen in the summer heat then in the cooler wetter autumn the seed coats would be softened & they would germinate. Minimum temperatures in Madeira average about 15C.

I have recovered what seeds I can & will soak & resow them - covered.

My E. wildpretii are a mass of hard seed which refuse to release.

 

 

 

 

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Posted : 27/07/2020 9:53 pm
Meconopsis_Matt
Eminent Member

Ah, OK Stu

To help you, i think you may get some better answers from the Scottish Rock Garden Forum. This is a more Meconopsis centric forum and doesn't really go into other genera unless of course it is relevant. Madeira flora will definately be different from what Meconopsis require.

hope this helps.

 

Matt

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Posted : 28/07/2020 9:03 pm
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