About basils: They are sun and heat lovers. I have planted some from seeds, some from rooting, some bought from nurseries... They are all outside and the weather has been cool(specially at nights) , rainy, damp... So they are hardly hanging there.

Same goes with squash, cucumber and eggplants. Tomatoes, on the other hand are ok.

I bet the weather is my problem then. We've had historically unseasonably wet and cool weather. Supposed to heat up this next week, we'll see if that kick starts things.

I am currently growing basil as well. Basil LOVE LOVE LOVE heat. Their roots require some heat as well. They prefer full sun and well drained soil. The soil should never be too moist for long periods, but they are water lovers. I would recomend that when you begin to germinate your seeds to use a heating pad to help promote root and shoot growth. I think the weather as you said in a previous post is for sure the issue. Again, basil are heat lovers. Maybe bring them inside with a white light over them and a heating pad near by to help promote some growth.

I find the seedlings somewhat slow to get started, then they take off (I started mine under lights).

Since mine have been outside, they haven't done much due to the cool weather.

Grow it permiculture style. First off, basil does like full sun once it is established. Those single leaves have no self shading. The key is to plant them closer together and each time you clip the plant you pick off the leaves and put the stem right back in the ground next to the mother until you have a thick clump. Dead head-pull off flowers. If you live in a cold area, let the basil go to seed in the fall and stop harvesting the leaves. Plant all those seeds in the same place and mulch over for winter. In the spring a bunch of basil will grow. Let some of it go to seed and dead head the rest. After that you'll have a little basil forest.

Here's a small basil garden that just got started. All of these basils were grown from cuttings. They can be crowded. Just replant the leafless stems everytime you prune. Just cut some short while the others grow. Then the small ones will come back in time to cut the larger ones. Root depth is more important to their health than plant spacing.