Van Bourgondien

Garden Guide Perennials

Varieties

Periwinkle

See Vinca minor

Perovskia

(Russian Sage) Plant in well-drained, ordinary garden soil in full sun. Space 18-24" apart. Stake plant to keep it from sprawling. Cut plant to ground level each spring to encourage strong stems and good flowering. Grows 2-5' tall, depending on variety. Blooms August-September. Hardy in zones 5-9.

Persicaria Persicaria

(Red Dragon) Should be grown in cool, fertile, moist soil in sun or partial shade, and may crowd out other plants, so take care when selecting a site. P. virginiana a

Peruvian Lily

See Alstroemeria

Phlomis tuberosa

Plant in either spring or fall in full sun to part shade in a well-drained, sandy loam soil that is low in fertility. Plants grown in rich soil will have weak stems. Space plants 4-6' apart. Remove spent flowers after blooming. Grows 6' tall and 4-5' wide. Blooms July-August. Hardy in zones 4-10.

Phlox paniculata

(Giant Hardy Phlox) Plant in humus-enriched, moist, well-drained soil in full sun to partial shade. Space 24" apart. In spring, thin new shoots to 4-6 stems. Deadhead to keep the plant vigorous. Water deeply during periods of drought. Avoid wetting the foliage; plant is susceptible to powdery mildew. Divide plants every 2-3 years in early fall. Replant only small, strong outer divisions. Grows 36-60" tall. Blooms June-September. Hardy in zones 3-8.

Physostegia virginiana

(Obedient Plant) Plant in moist, slightly acidic soil in full sun to partial shade. In partial shade, plant in drier soil. Space 18" apart. Divide every 2-3 years. Grows 24-36" tall. Blooms August-September. Hardy in zones 4-9.

Pickerel Rush

See Pontaderia

Pink Black-Eyed Susan

See Echinacea

Plantain Lily

See Hosta