Planting Seven Sisters Roses

Variety: Rose Rosa -Seven Sisters'
Zones: 4 to 7
Soil Type: Fertile, well-drained soil.
Soil pH: 6.5 to 7.0
Sunlight: Full sun
Watering: Average to heavy water needs.
Fertilizer: Balanced, single-digit, general garden fertilizer.
Availability: Sold as "bare root" or potted plants.

When to plant: Seven sisters roses can be planted from fall to early spring, depending on your zone. Plant roses earlier in warmer zones, later in cooler zones.
 
Planting Method
 
Bare Root: Dig a hole wide enough to spread roots our comfortably. Hole should be deep enough to place the stem one inch below ground. Backfill firmly to avoid air pockets in the soil.

Potted plants: Dig a hole slightly wider than the seven sister rose's container and deep enough to be level with the soil in the container. Gently remove the rose from the container and loosen the roots by hand. Place the plant in the hole and backfill firmly with soil. Soak the area around the plant to compress the soil.
 
Watering
Seven sister roses need 1 inch of water per week. Monitor roses carefully during periods of drought.

Fertilizing
Fertilize seven sister roses once in the early spring, then once a month during summer months. Stop fertilizing roses six weeks before the first frost.

Production
Seven sisters roses bloom in the spring. This rose bush will produce clusters of up to seven blooms that will each be a different color depending on the age of the bloom.

Harvesting
Seven sister rose blooms may be cut using a sharp knife or garden shears. Place roses in water-adding a crushed aspirin will prolong the life of blooms.

Diseases
Mildew: Usually caused by limited airflow around the plant, mildew appears as a powder on the edges of leaves. Proper plant spacing will hinder the formation of mildew. An application of fungicide will also combat mildew.

Black Spot: Appears as black spots on leaves. During wet or humid weather, black spot can lead to defoliation of seven sisters rose bushes. Remove infected stems of plants and treat entire plant with a fungicidal soap several times over the course of the season.
 
Pests
Aphids: Small, soft-bodied insects that suck moisture from plants. Ladybugs are a great way to control aphids. Consider insecticidal soaps as an alternative to pesticides.

Japanese Beetles: These ½" long metallic green beetles have no natural enemies in the US. Japanese beetles are voracious leaf eaters. The best way to remove Japanese beetles is to kill their larva. The larvae are usually found under turf grass and can be eliminated using grub-specific pesticides or organic treatments like milky spore. Adults may be captured in traps, but don't place traps near the plants you want to protect.

Cleanup
Seven sister roses can be pruned in late fall for warmer zones and early spring for cooler zones. Remove all dead wood first, then prune for size and shape. In cooler zones, mulch roses in fall to help them over winter.
 
Saving Seeds
Seeds can be collected from rose hips (bulbous growths at the tips of rose stems) when they turn red. Pack seeds in peat moss, place in a plastic bag and store in a cool, dark place.

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