21.   At this time of year, you can tell male plants from female ones, which are sprinkled with red berries.

22.   -- Remove water hyacinths, lettuce and other tropical plants from ponds.

23.   A generation ago, many more gardeners grew their plants from seed.

24.   A higher pH protects these plants from club root, a soil-borne fungus.

25.   A light mulch for the first winter will help keep freezes from heaving the plant from the ground.

26.   A top layer of mulch will also keep plants from drying out.

27.   A view of Indian Point Nuclear plant from the Husdon River.

28.   A world traveler, he began bringing back exotic plants from around the globe to his burgeoning gardens.

29.   After it roots, sever the new plant from its parent and replant.

30.   But in the cultivated understory, he has convened plants from all around the globe, reuniting the tribes of the botanical diaspora.