Sedum autumn joy is a superb low-maintenance perennial. You will find that autumn joy will also attract butterflies late in the season when it is in bloom. Find facts and information on growing this sedum which is a cross of hylotelphium x ‘Herbstfreude’. No green thumb is necessary to grow sedum plants, as they almost take care of themselves once planted.
Sedum Autumn Joy Facts
Sedum autumn joy grows in Zones 3-10 and will reach heights of 24”h x 24”w. It has an upright form and prefers full sun and moderately fertile soil with a pH of 6.5-7.3.
The flowers will first turn pink in mid- to late summer, then rose-red, then deep brown-burgundy in late autumm. Autumn joy sedum will attract both bees and butterflies to your garden.
Good companion plants include purple coneflower, ‘Shenandoah’ switchgrass, fountain grass, and ‘Color Guard’ yucca.
Sedum Plants: Care and Planting
Plant sedum 18-24” apart in spring or fall. Apply slow-release granular plant food in spring. Apply 3” of vegetative mulch in summer and winter. Water them deeply when the soil becomes dry. In moderately fertile soil plants must be divided every 3 years to maintain form and vigor. In rich soils division is needed sooner. It is required when stems emerging in spring flop to the ground. Lack of sun also caused foliar flopping. Pruning them back can be done in fall or you can leave them erect to admire in your winter flower bed.
Propagation of Sedum Autumn Joy
To divide, simple dig around the root clump and lift up. Use a sharp spade to slice through the root system. The larger the portion the larger the resulting plant during the first year. Smaller pieces may take 2-3 years to reach mature size and bloom. Reset portions that contain healthy roots and top shoots. Discard the center portion if it is dead. Water deeply and apply 3” of vegetative mulch around, but not touching, the plants.
Pests and Diseases
Most types of sedum are relatively pest free when cultural requirements of sun, soil, planting depth, and moisture are met.
S. ‘Ruby Glow’ reaches 12” high an 18” wide and has red stems, bronze-stained deciduous green leaves, and ruby-red flowers from midsummer to early fall.