Starting Seeds Indoors Pt. 2- Performance Enhancing Secret


Starting Seeds Inside for Annual and Tropical Milkweed

Starting seeds indoors requires more patience if you’re letting things progress on nature’s terms…but there’s a quicker way.

If you’re anxious to get this season growing, try a performance enhancing trick that works like a charm for getting annual milkweed varieties off to a fast start.

But first, if you’re completely lost, you probably missed the first post from this trilogy. Once you’re up to speed, continue reading below:

2014 Update

This year I’m trying something a little different:

  • I’m using the same milk jug containers that I used for winter sowing
  • I’ll still be using the performance enhancing trick listed below for faster germination
  • After the seeds germinate, the milk jugs will be moved downstairs with the overwintering plants

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My current includes old seed starting trays, clear tray covers,  5 oz. translucent cups, shelving for the trays, T5 grow lights, and a heated seedling mat.

Starting Seeds Indoors with small plastic cups

3 Holes 1 Cup

As I write this, my is keeping my Asclepias physocarpa (goose plant), Calotropis gigantea (giant milkweed), and Calotropis procera (rooster tree milkweed) seeds a balmy 75-80° F while it’s below zero in the butterfly garden.

Why does this matter?

Since the seeds germinate at around 75° F, northern germination outside might not occur until late June or July. So your milkweed gets off to a super slow start and then, before you know it…your “runt of a plant” gets rudely interrupted by winter’s return.

I’d heard of heated seedling mats before, but foolishly discounted them as a “marketing ploy” in my early days of gardening. Once I broke down and bought one, I was simply amazed by the results. Not only did my seedlings sprout in record time, I also had my highest germination rate ever for tropical milkweed.

While spring sowing tropical seeds might be easier, what’s the point if these are the measly results:

starting seeds indoors can help you avoid this late season tropical milkweed tragedy

Teeny Tiny Tropical

This late-August tropical milkweed plant started from seed in a local butterfly garden. Even with the encouragement of soaking rains and sizzling summer sun, it never grew up to share nectar with a monarch, or feed hungry caterpillars.

For annual milkweed, starting seeds indoors can mean the difference between a long summer of beautiful blooms, or the joyless alternative above. I know what I’m choosing…

Note: While starting seeds indoors is a fantastic option for starting your annual milkweed supply, it’s much easier to continue that supply by taking yearly milkweed cuttings in fall or winter.

In my next post on starting seeds indoors, you’ll see photos of my entire setup and, whether or not seed starting indoors was successful.

Click Here for Milkweed Seed Starting Results

Do you know other gardeners in USDA Zone 8 (and below) interested in growing annual milkweed plants for monarchs? Share this page and help a gardener out:

 

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