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  • … cultural information, aesthetic qualities, and landscape uses will be emphasized. Learn to select appropriate trees to add interest and depth to your garden and landscape projects. Prerequisite: Botany 1  OPC, PGL 1, PGL 2, and GDC …
    Type: Item Detail
  • … panicles of creamy yellow flowers. The foliage emerges with coppery highlights before maturing to green. In the fall, the leaves turn a bright red. The fruits contain tannic acid which is poisonous to humans as are the leaves. It is hardy to Zone 4 and prefers moist, well-drained soil. …
    Type: Garden Guide Plant
  • … water requirements. It should be noted that this is a taprooted tree which makes it difficult to transplant and will cause it to take a long time to get established. …
    Type: Garden Guide Plant
  • … in late summer and continuing into fall. This cultivar is smaller statured, reducing the need to stake the plants to keep them upright when they come into flower. Plant dahlias in the garden in June, after the … moderately rich, moisture-retentive soils. Insect pollinators and hummingbirds are attracted to the flowers. …
    Type: Garden Guide Plant
  • … Spikes of white flowers up to 6 feet in height top out this hardy perennial that requires full sun and moist but well drained soils. New plantings should have the bloom spikes staked the first year to avoid toppling. Avoid windy planting sites and plant on a slight mound to help prevent crown rot. A number of compounds in the flowers, leaves and seeds are toxic and …
    Type: Garden Guide Plant
  • … giant wood fern or Goldie's wood fern is the largest of the Dryopteris ferns that are native to eastern north America where it thrives in moist, protected woodlands. This fern can grow to about 4 feet high and 6 feet wide with long dark green gracefully arching fronds. It is … shade and spreads slowly once established. The giant wood fern would provide height and drama to a shade border or as an understory in a shade garden. …
    Type: Garden Guide Plant
  • … Giant' is a naturally occurring white-flowered form of Allium stipitatum, native from Turkey to the Tien Shan Mountains in Central Asia. Flower spikes grow to 4 feet tall and feature white flowers with a dark green center. Unlike many ornamental onions, the leaves are still green and fresh looking when the plant comes into flower. The key to keeping this and many other ornamental onions long-lasting in the garden are soils that do not …
    Type: Garden Guide Plant
  • … of the candelabra like flowering stalks that gently curve as they age. Full sun with plenty to room to grow as it reaches mature size. Outdoors it is hardy to about 20 degree F in dry climates. …
    Type: Garden Guide Plant
  • … deeply cleft into five toothy lobes; leaves on the flowering stems, in opposite pairs, appear to encircle the stem. This rhizomatous perennial grows from 1 to 2 feet tall, and the flowers, which reach up to 2 inches across, bloom in upward-facing clusters. …
    Type: Garden Guide Plant
  • … with golden throats are massed on long spikes at the end of each branch from late July up to frost on this half-hardy shrub that is usually killed back to ground level each winter. Plant this butterfly bush in full sun and in moist, well-drained … in your garden from which you can observe the droves of butterflies and hummingbirds attracted to the honey-scented, nectar-filled flowers. …
    Type: Garden Guide Plant