Friday, January 18, 2013
Stratify and Scarify seeds
So I started some English lavender and Echinacea by stratifying them and placing them in the frig.
What is Stratification?
Stratification is the process of pretreating seeds to simulate natural winter conditions that a seed must endure before germination. Many seed species undergo an embryonic dormancy phase, and generally will not sprout until this dormancy is broken. The time taken to stratify seeds depends on species and conditions; though in many cases two months is sufficient.
seed starting mix.
Seed that are larger usually need to be scarred to allow them to soak up water/moisture. Perennial seeds usually need to be stratified. Wrinkly seeds and seeds you have scarified need to be soaked in water. Once you place your seeds in moist seed starting mix or vermiculite then place them in the frig for the amount of time stated on the packet, you may also place them in the freezer but keep in mind it's not only about the cold to germinate but it's the time as well. So when a seed packet stats placing it for 4-6 weeks don't think placing it in the freezer for 2 weeks will work, it might not.
What seeds are you planting that might need to be stratified or scarified?