PH: The ideal pH for rose gardens is 6.5 (slightly acidic).
Pistil: The female organ of a flower, comprised of the stigma, style and ovary.
Pollen: The yellow, dust-lie male cells produced by another flower.
Polyantha: A class of roses by Jean Baptiste Guillot from crosses between climbing varieties of R. Multiflora and the
repeat-flowering China Old Blush. Polyanthas present their delicate flowers in sprays well above there foliage.
Portland: An old class of roses that became popular after 18700 largely because of its ability to bloom repeatedly, a rare
trait among European roses at the item. They have fragrant blooms on straight stems directly atop their foliage.
Pruners: An essential tool for the Rosarians. The best design is the Bypass Pruner which has two blades that cut like
scissors. The Anvil Pruner uses a flat plate to push the cane against a single blade, which often results in crushed canes.
Quartered Rose: A rose form in which the petals appear to be pinched into four quarters.
Rambler: A climbing rose, generally of multiflora origin, that presents clusters of small blooms on long, slender canes.
Root stock: A variety whose vigorous roots are used as the foundation for a budded rose. The use of rootstock's allows
varieties that would not grow on their own roots to be propagated commercially.
Rugosa: Derivatives of the hardy Japanese species, R. Rugosa, that are recognized for their deeply veined leaves
Rust: A fungal disease that is recognized by orange-red patches on leaves.
Seed Parent: The female parent of a hybrid rose that receives the pollen.
Semi-Double Rose: A rose form of 12 to 24 petals.
Shank: The straight portion of rose bush between the canes and roots.
Shrub rose: Any rose that presents its blooms close to the foliage and is well suited for unattended use in the landscape.
Single Rose: A rose comprised of a single ring of petals, generally numbering 5 to 12 petals.
Shade Rose: The Roses need 6 or more hours of sun, but some roses are tolerant of shade but this means open shade.
Shovel-prune: After heaping abundant patience on an unsatisfactory rose, the means by which one renders a final opinion
of it s performance. Removing the rose bush to be replaced by another.
Species Rose: A native (wild) rose that will reproduce tre from seed. Species roses will start with the name Rosa followed
by a word. Only a few hundred species roses exist.
Sport: A spontaneous mutation that generates a new rose. Climbing roses are sports of bush roses. Other common sports
include changes in color and petal count. Some sports are stable to start a new rose.
Spray (aka: inflorescence): The presentation of blooms in clusters that originate at a single stem.
Spreader-sticker: An additive for sprays that increases their effectiveness by enabling the drops to flow more evenly across
the foliage and to stay in place.
Stamon: The male portion of a flower's reproductive system, comprised of a filament that holds the pollen.
Stigma: The female portion of the flower that receives pollen grains for fertilization.
Sweat-out: A technique used to encourage stubborn bushes out of dormancy by placing a plastic bag around the canes.
The effect is to create a miniature greenhouse that holds in moisture and warmth.
Substance: The amount of starch in the cells of a rose petal; roses with more substance will last longer in the vase.
Sucker: Stems that grow spontaneously from the roots of a budded or own-root rose, generally in an unwanted manner.
If left in place, the rose you are growing will die due to sucker plant is rootstock taking over the roots.
Tree Rose: A garden specimen created by budding a rose atop a stem of 36" to 48".
Weeping Tree: A tree rose comprised of a 48" to 96" stem grafted to a head of a rose with a lax habit. The result is that
the long canes cascade outward and down.
Wild Rose: Synonym for Species Rose.
Winterize: The protection of one's garden from winter dehydration and late spring frosts by the use of heavy mulch, rose
cones, etc
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