Yup! As you’ve noticed I do use them as most types of seeds don’t need light to germinate. And by the time they sprout and are an inch or so tall, the weather is typically improved enough that I’ll start to pop them jugs open and let the seedlings grow on. I’ve never had an issue using these opaque jugs. 🙂

Hi Cristina, I collect seed from perennial plants as soon as the seed pods ripen in late summer or autumn. This is because most will disperse soon after or get eaten by birds and other critters. You can check to see if your seedheads still have seeds and if they do, go ahead and collect them. Fingers crossed! 🙂 – Niki

I’m excited to try this! I’m in MA in zone 6b. When’s the latest you’d collect seeds from your existing perennials? I’d like to try this with my echinacea but I’m wondering if it’s too late for me to collect their seeds. Should I have done it in fall?

Hi, I’d get started ASAP to take advantage of the coldest part of your winter. By late March, early April the seeds will sprout and you can transplant them into your garden beds. Good luck! Niki

Hi Gigi, it’s a common worry for sure – and I get so much rain as well, but as long as you add drainage holes you should be fine. You can also keep caps on milk/water/soda jugs too to reduce the amount of moisture getting in the containers. Just check occasionally and if the growing mix seeds dry, you can add water as needed. Hope this helps! Niki