Broadly speaking, based on the planting advice above, you would have been safe planting the seeds in the spring, being in Zone 7; of course, micro-climate conditions can put you into a higher zone. But here are a few ideas:
You can transplant them outside in part shade, in well-drained soil (not clay). They like sunshine, but they like cool soil. Organic mulch will help that, but certain mulches can also harbor slugs, especially the coarser materials such as bark mulch or straw. Fine organic matter isn’t as attractive to slugs.
You can also try planting your sweet peas in containers outdoors, using the potting soil etc. that you have. In the heat of the afternoon, provide some shade for them, or wheel them into a shady spot.
Broadly speaking, based on the planting advice above, you would have been safe planting the seeds in the spring, being in Zone 7; of course, micro-climate conditions can put you into a higher zone. But here are a few ideas:
You can transplant them outside in part shade, in well-drained soil (not clay). They like sunshine, but they like cool soil. Organic mulch will help that, but certain mulches can also harbor slugs, especially the coarser materials such as bark mulch or straw. Fine organic matter isn’t as attractive to slugs.
You can also try planting your sweet peas in containers outdoors, using the potting soil etc. that you have. In the heat of the afternoon, provide some shade for them, or wheel them into a shady spot.
Read above about care and pests.
We hope this helps!