Larkspur Performs Best Where Summers Are Cool.

Thin the seedlings about 8 to 10 inches once they produce a mature set of leaves. In the warmer parts of the south, you can sow your seeds in the fall for spring flowers. After you have sown the seeds into the flower bed.

Sprinkle The Larkspur Seeds Into The Furrows.

The lacy leaves grow to about 3 in width and length. Seeds do not germinate well when soil temperatures are above 55°f (13°c). If you are direct sowing into a garden bed in the fall, you may find that your seedlings are much more closely spaced.

These Seeds Need To Be Protected For Two Weeks Before They Are Planted.

How to grow delphinium plants in your garden gardener's hq guide to growing larkspur. Here in kentucky (zone 6b/7), i direct sow the larkspur seeds into a prepared garden bed in the fall around the end of september. You can chill your larkspur seeds in the refrigerator before planting.

Maintain The Moisture Till The Seeds Germinate.

Germination should occur in 2 to 3 weeks. Larkspur seeds can also be easily sowed directly into your garden. Once planted, the seeds should germinate within three weeks.

Once The Roots Have Sprouted, You Can Move Them Into Their Permanent Spots.

If this is the case they can be thinned to a. Sow seeds from february to june or in september to october. Place two seeds inside each pot and cover with just 1/4 inch of soil.