Continue to snap off the side-shoots which will appear in the leaf joints of your tomato plants.

The small flowers are, pink, white, or greenish, forming in summer in dense clusters from the leaf joints or stem apices.

Cut just below a leaf joint, and trim off the bottom leaves together with the stipules (the small scalelike growths at the base of each leafstalk).

This one has little bristles at the leaf joints.

It has a deep purple stem, which is not hollow, and there are purple-black markings at the leaf joints.

Tiny bulbils form in the leaf joints in the upper part of the plant, giving the plant its scientific and common names.

The submerged stems have fine roots growing from the leaf joints or nodes.

It has little bristles at the leaf joints.

Cutting should be about 9in long, cut just below a leaf joint at the bottom, and just above a leaf joint at the top.

Each should be cut cleanly just below a leaf joint, and the lowest leaf or leaves removed completely, including the leaf stem if any.