Lily-of-the-Valley flourishes in the shade and also where there is a little (but not too much) sunlight. It thrives beneath shade trees and near a wall. _Room for development it must have_; otherwise it becomes crowded to such an extent that the plants deteriorate and fail to bloom. The Lily-of-the-Valley should be planted in September or October. Prepare the soil by deep digging and mix in a plentiful supply of decayed manure. Leaf-soil and road sweepings may be added to heavy soil. Plant crowns about three inches apart to allow room for future development. Bury the crowns just below the surface and make them moderately firm. When all are planted mulch with rolled manure and leaf-soil in equal parts, covering the bed to a depth of two inches.
LONG PURPLES. This Arum, being a plant of the woods, does well in the rock-garden. The best plan is to remove a Jack-in-the-Pulpit from the woods with some of its native soil and transplant it in the garden. It grows in shade and sun alike.
MARIGOLD. For marigolds choose a light, dry, _poor_ soil and a sunny spot. Sow seed any time from February to June. Seeds sown in the spring will produce flowers in June. Sow in drills ten inches apart and water moderately. Thin the seedlings and remove into rows ten inches apart. In rich soil the plant grows too large and fails to blossom well. H. H. Thomas in "The Complete Gardener" says:
"The ordinary reader understands Marigold to refer to the French, African and Pot Marigolds. The botanical name _Calendula_ is said to imply that the plant keeps pace with the calendar. In other words that it is nearly always in bloom. And really this is not very far from the truth. Once introduce the Pot Marigold into your garden and you will rarely be without flowers. It is hardy and seeds itself very freely. Seed may be sown out of doors where the plants are to bloom, choosing for preference poor ground, otherwise the plants will grow freely enough, but blooms will be scarce."
The French marigold is deep yellow, orange, or pale yellow striped or marked with brown, and crinkled. It grows from twelve to fifteen inches high. "The Gentleman's Labyrinth" gives quaint instructions for the growth of the Marigold: