Evening Primrose.—See “Oenothera.”
Everlasting Peas.—See “Peas, Everlasting.”
Fatsia Japonica.—See “Aralia.”
Feather Grass.—See “Stipa Pennata.”
Fennel.—Sow the seed in April, cover lightly with fine mould, and when the plants are strong enough set them out 1 ft. apart. Cut off the flower-stalks as soon as they appear, to prevent them running to seed. The bed will last for years. (See also “Ferula.”)
Fenzlia.—Elegant half-hardy annuals. Sow the seed on a peat soil. If this be done in autumn, they will flower in April or May; if sown in spring, they will bloom in autumn. Height, 6 in.
Ferns.—Most Ferns delight in a loose soil, an abundance of moisture, and a warm, humid atmosphere. The stove and greenhouse kinds are best cultivated in a mixture of sandy loam and peat. The hardy kinds grow best among rock-work or in a shady border: a light, sandy soil suits them. They may be increased by dividing the roots.
Ferns from Seed.—Collect the spore-fronds towards the end of summer, just as the spore-cases begin to open. Place them on a sheet of paper in a box for a few days, keeping it in a dry place. Most of the spores will fall out, the others may be rubbed out with the hand. These spores will keep good a long time, but are best sown within a year. Fill the pots with good heavy loam, water freely, and apply a coating of charcoal, coarse sand, and sphragnum moss, rubbed through a fine sieve. Damp the surface, sow the spores thinly, and cover with glass. Keep the soil moist by standing the pots for a time each day up to their rim in water. No surface water should be given. Stand the pots in a warm, light place in the greenhouse, but keep them shaded from the sun. When the surface is covered with growth, prick out into pans or boxes, using a rich, light soil. When they are large enough pot them off singly in thumb-pots, re-potting as soon as these are filled with roots.
Ferula (Giant Fennel).—Strong-growing, hardy, herbaceous plants. F. Gigantea has bright, glistening foliage, changing to a brilliant orange, and attains a height of 8 ft or 10 ft. F. Tingitana is very stately and graceful, growing 4 ft. high. They are easily raised from seed, will grow in any garden soil, and flower in August and September.
Festuca.—An annual ornamental grass, which is grown best on a loamy soil. Sow the seed in March, and keep moist till it germinates. Height, 1 ft.
Feverfew.—This hardy perennial will grow in any soil and ripen its seed freely. Young plants, obtained by sowing the seed early in spring, are very useful for edgings; when planted alternately with, or in proximity to, Lobelia a pretty effect is produced.