Most people who garden know how easy it is to start tomatoes, cucumbers, basil, and peas. They have been cultivated to where we can rely on good germination and pretty easy starting. Where I see people get unsure is often when you go into medicinal herbs, prairie or native plants, and more exotic or uncommon flowers and herbs. The packets talk about scarifying, stratification, scarification, and cold dormancy or extended germination. It used to seem confusing, but when I started categorizing my seeds in my box system, categorizing them into the basic types of germination wasn't too hard. I don't like to go overboard, I just like things that work well, simply. These methods may seem picky and delicate and time-consuming, but if you break it down it is pretty simple. And the bonus is you can grow some pretty cool plants you would never find in a garden center. These native plants, herbs, and flowers are also often those which are great for pollinators, attracting beneficials to your garden.
Cold stratification means the seeds like a feeling of winter before they are ready to go. Putting the seed packs into the refrigerator for a few week gives them a kickstart. The easiest way to do this is by putting them in a baggie and labeling in/out dates for your fridge.
Another cold stratification is the moist type. I put these in a baggie in my fridge for a few weeks as well, but in a moist paper towel in the baggie, not in the packet. Be sure to note the in/out date on the bag. Some of these seeds like to get a scratch on the sandpaper first too.
Some seeds, like lavender, like cold stratification in a medium such as sand or soil. For these, I put them in a baggie in the fridge at the same time as the rest, I just put them in some potting soil in the baggie and note in/out date.
Scarification is when a seed needs to be scratched or penetrated a bit to begin the germination. A cool and moist scarification germination just means rub the seed on sandpaper, plant at the surface and lightly cover with soil, and keep cool and moist for 1-3 weeks until it germinates. Then treat it as you do the other seedlings until planting out.
There can also be warm germinators which needs soaking and scarification to germinate. For these, give a quick nick or rub with sandpaper, soak in warm water overnight, and plant, lightly covered in soil. Keep warm and moist until germination occurs, and then treat as you do other seedlings.
That may seem like a lot to do, but in reality each type only takes a few minutes. The rest of the time is watering or waiting. I like to print out blank monthly calendars from March through June and keep it in my seed box. I note how each week by week number until last frost date, so it coordinates with all of the folders with seeds. I also can easily write down when to pull the baggies out of the fridge and plant them, etc. It makes it pretty foolproof. I like that I have basically a noted calendar of each year that I can look back on next year too.
Speaking of good, we are picking up our mason bees and beneficial insects this week. Spring really is coming!
More seed starting and greenhouse assembling to come. :)