Birds love thimbleberries! can become a nuisance in gardens due to their prickly stems and their habit of resprouting from their roots. To allow your garden the room it needs to prosper, wild raspberries need to be kept about 600 feet from your garden, either by cutting them back or destroying them. Wild American red raspberry (Rubus idaeus) and black raspberry (R. occidentalis) grow in USDA zones 3 through 8, and cultivated raspberries grow in U.S. Flower arrangement, shape, and size. Wild and cultivated raspberries (Rubus spp.) Raspberries like a pH of 5.6 to 6.2. Amending the soil can rectify both soil quality and pH levels. Since the flowers are almost always self-incompatible, this species relies on bees and other pollinators to produce fruit. Fruit, cone, nut, and seed descriptions. Animals including black bear and coyote also consume the juicy fruits. Flowers give way to 3/4" diameter, cup-shaped red fruits (raspberries) which are edible but somewhat dry, crumbly and unappetizing. You can also sometimes distinguish between thimbleberries and raspberries by looking at the berries themselves. Wild Raspberry or Wild Red Raspberry: Plant Type: Perennial: Mature Size: 3 to 4 feet tall and 2 to 3 feet wide: Sun Exposure: Full sun to partial shade: Soil Type: Rich and well-draining: Soil pH: Acid to neutral: Bloom Time: Summer to fall: Flower Color: White: Hardiness Zones: 2 to 7: Native Area: United States, Canada, France If raspberries fail to produce flowers, test the soil near the plant using a home testing kit (available at gardening centers). Sepals are covered with glandular hairs. Rose-lavender, 5-petaled clusters of single flowers. Fruit is a dry, aggregate, purplish-red drupe that resembles a fuzzy, flat raspberry. The MF Wild Raspberry is hard to get, and yes it's expensive but it's worth it. Sometimes commonly called thimbleberry (though this common name is usually more appropriate for the similar but white-flowered Rubus parviflorus of the West). Wild raspberries are a prolific wild plant that will invade your garden if allowed to do so. Red raspberry is delicious to humans, and many cultivars have been developed from the wild species. While you're at it pick up their caramel. Fruits ripens in mid-to-late summer. In addition, raspberries don't grow well in poorly draining or clay soil. They damage other plants by spreading along the ground sending up cane shoots that choke out other plants. Thimbleberries look a lot like thimbles (hence the name) – they’re flatter and wider than raspberries. Raspberry plants have lots of small to medium thorns, while thimbleberries are thornless. The wild raspberry (Rubus idaeus L.) is native to North America where it is hardy in U.S. Department of Agriculture plant hardiness zones 3 to 7. Here the MF Wild Raspberry is the realistic part of the raspberry and also brings some dark sweetness to do terribly good things to the EM laiden Raspberry Sweet.