Ranunculus Asiaticus
Grow in medium wet, well-drained soils in full sun. Needs excellent drainage. Performs poorly in unamended heavy clays typical of the St. Louis area. Where not winter hardy (north of USDA Zone 8), plant tubers 2” deep and 6-8” apart, with root ... [... more]
Missouri Botanical Garden |
Ranunculus Repens 'Buttered Popcorn'
This buttercup cultivar is a dense, creeping ground cover that typically grows to 10" tall and features attractive, chartreuse and gold, deeply cut, serrated, snowflake-like leaves on creeping stems which root as they go at the nodes. Bright ... [... more]
Missouri Botanical Garden |
Raphanus Sativus
Radishes have had a long relationship with man. Southern Asia is believed to be the country of origin since truly wild forms have been found there. Middle Asia and India appear to be secondary centers where many different forms developed ... [... more]
Missouri Botanical Garden |
Raphanus Sativus 'Caudatus'
The podding radish and its close relative the "regular" radish have had a long relationship with man. China is believed to be the country of origin, since truly wild forms have been found there. Middle Asia and India appear to be secondary ... [... more]
Missouri Botanical Garden |
Ratibida Columnifera
Long-headed coneflower or prairie coneflower is an erect, hairy, clump-forming plant that typically grows to 1-3’ tall. It ranges from Alberta to Minnesota south to Arkansas, New Mexico and Mexico. It is most common on the Great Plains. In ... [... more]
Missouri Botanical Garden |
Ratibida Columnifera 'Buttons And Bows'
This long-headed coneflower cultivar features pinnately divided leaves (to 5" long) on stiff stems typically growing 2-2.5' tall. The composite flowers have a distinctive brown to purplish-brown central disk in the shape of an elongated cylinder ... [... more]
Missouri Botanical Garden |
Ratibida Pinnata
This gray headed coneflower is a Missouri native plant which typically occurs in dry woods, prairies and along railroad tracks and roads. A somewhat rough-looking plant that features pinnately divided leaves (to 5" long) on stiff stems growing ... [... more]
Missouri Botanical Garden |
Rhamnus Frangula 'Asplenifolia'
This glossy buckthorn (or alder buckthorn) cultivar is an upright, spreading, deciduous shrub which typically grows 6-10' tall. Clusters of whitish-green flowers appear in the leaf axils in May. Flowers are attractive to bees but not particularly ... [... more]
Missouri Botanical Garden |
Rhamnus Frangula 'Columnaris'
Rhamnus frangula is commonly called alder buckthorn because it is frequently seen in the wild growing in moist soils near alders (Alnus). It is also commonly called glossy buckthorn in reference to its glossy leaves. ‘Columnaris’, also known as ... [... more]
Missouri Botanical Garden |
Rheum X Hybridum 'K-1' Starkrimson
Rhubarb is a clump-forming, perennial vegetable grown primarily for its edible leaf stalks which are used most often in sauces or pies. Stalks of this cultivar are dark red, with a tart flavor that is somewhat less acidic than some other ... [... more]
Missouri Botanical Garden |
Rheum X Hybridum 'New Valentine'
Rhubarb is a clump-forming, perennial vegetable grown primarily for its edible leaf stalks which are used most often in sauces or pies. Stalks of this cultivar are dark red, with a tart flavor that is somewhat less acidic than some other ... [... more]
Missouri Botanical Garden |
Rheum X Hybridum 'Valentine'
Best grown in fertile, sandy-humusy, slightly acidic, medium wet, well-drained soils in full sun to part shade. Best grown from root divisions (sections of root with one or more buds or eyes). Plant root sets 3-4' apart in early spring. Do not ... [... more]
Missouri Botanical Garden |
