www.growsundews.com wrote:Cold stratification is used for temperate sundews as well other temperate carnivorous plant genera (i.e. Sarracenia) in order to stimulate the period of cool, damp conditions that come just before spring. Cold stratification involves placing seeds in a refrigerator (or chilled area) on a damp surface for 2-6 weeks, depending on how fresh the seed is. Longer durations of cold temperatures will encourage the most germination. I usually wait a month on average. When you take the seeds out of the fridge, it simulates the start of spring. To simulate the warmer spring months, place the seeds in the same conditions that would be used for planting subtropical or tropical sundew seeds, as described above. You can expect germination within 1-3+ weeks after cold stratification, depending on how fresh the seeds are.So, after reading this, I began work on my Darlingtonia seeds from FTS. My question is, how do you know when enough time has passed to stop? Are the seeds supposed to germinate, or will they still look identical to how they did at the start? If there is no specific way to tell when to stop, I will just plan on 1 month.
Placing seeds inside of a Moist Paper Towel in a Ziploc bag
Part1- Moisten a paper towel. Sprinkle your Drosera seeds on the towel- It is easiest if you clump them all in the same place, but try to remove chaff or debris first (since mold could develop and ruin the whole clump of seeds). Place the moist paper towel inside a Ziploc bag. Leave in fridge for the desired period of cold stratification.
Part 2- Prepare your desired media. Then pick up the sundew seeds with tweezers or a toothpick and place them on the surface of the media you've prepared. This part is not fun, since the seeds can get stuck in the paper towel, but there is considerably less of a risk for mold. Clumping the seeds together substantially speeds up this process.
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