A Look Inside Our Hypericum calycinum (Creeping St. John’s Wort) Seed Harvest
There’s something especially satisfying about seeing a seed crop come full circle.
Right now, we’re harvesting our 2026 crop of Hypericum calycinum — a familiar landscape plant with bright yellow flowers, dense green foliage, and a completely different look once seed harvest begins.
A Groundcover That Puts on Quite a Show
Hypericum calycinum, commonly known as Aaron’s Beard or creeping St. John’s Wort, is a vigorous, spreading groundcover grown for its dense foliage and large golden-yellow flowers.
Those flowers are hard to miss. Each one has a mass of long, prominent stamens in the center that gives the plant its distinctive look when it comes into bloom.
Its spreading growth habit makes it useful for mass plantings, slopes, banks and other areas where a dense groundcover is wanted, and it can be grown in sun to partial shade.
Beyond the landscape, Hypericum calycinum has also attracted interest for its bioactive plant compounds, and its yellow flowers have traditionally been used to produce natural yellow-orange dyes.
But for us, the really interesting part starts when those yellow flowers disappear.
This Is Where the Seed Harvest Begins
After flowering, the plants begin developing seed capsules.
It’s a stage of the plant that most people probably never pay much attention to. But when you’re growing and collecting seed, these little capsules are exactly what you’ve been waiting for.
As they mature, the capsules turn brown and dry, and inside are the tiny seeds that will eventually become the next crop.
And when you’re harvesting on a commercial scale, you need a lot of them.
Harvesting Is Only the Beginning
Collecting the capsules is just the first part of turning a crop like this into a finished seed lot.
Once they come in from the field, the harvested material is spread out and allowed to continue drying before processing.
This is probably one of our favorite parts of seed production to share.
A finished bag of seed looks pretty simple. What you don't see is everything that happened before it got there — watching the crop develop, collecting at the right stage, bringing in all of that plant material, drying it, processing it and eventually getting down to the actual seed.
That process looks a little different for every species, and it’s one of the reasons we started sharing more of what happens behind the scenes at Elfland.
The 2026 Crop Is Underway
Our new Hypericum calycinum harvest is now coming in, and the next step will be drying and processing the collected material into finished seed.
Once the new lot is ready, it will be available for nurseries and commercial growers looking to add Hypericum calycinum to their production programs.
Fresh seed will be available soon and is now open for pre-orders.
ORDER HYPERICUM CALYCINUM SEEDS