Common Name:Rose

Scientific Name: Rosa spp.

Rose - Growth Habit

Classification: Deciduous         USDA Hardiness Zone: 4-8

Size:

• Variable width X 2' to 10' height

Growth Habit:

• Irregular
• Upright or semi-climbing
• Moderate to rapid growth rate

Bark:

• Green
• Turning light brown to reddish brown with age
• Covered with spines

Rose Compound Leaf	Rose Alternate Arrangement

Foliage:

• Deciduous
• Alternate arrangement
• Compound leaves
  • generally with 3 or 5, occasionally 7 leaflets
    • 2-3" long X 1/2" wide
• Ovate leaflet shape
• Serrate leaf margins

Polyantha Rose	Hybrid Tea Rose	Shrub Rose

Floribunda Rose	Species Rose	Climber or Rambler Rose

Inflorescence: 

• Terminal buds
• May be single or double
• Many are fragrant
• Many different colors
  • whites, reds, yellows, oranges, pinks, and purples
• Blooms from the spring through out the summer (some even bloom until the first frost)

Ovary or Rose Hip

Fruit:

• Large, rounded
• Located at the base of the petals
• Not showy
• Remove to encourage flowering

Use:

• Ornamental shrub
• Climbers
  • suitable for fences or trellis

Problems:

• Fungal diseases of the leaves:
  • Black spot (serious)
  • Powdery mildew (serious)
  • Rust
• Aphids
• Thrips
• Crown gall

Culture:

• Full sun
• Plant in good soils with good drainage
• Plant in areas with good air movement to prevent fungal disease development

Propagation:

• Cuttings
• Grafting of selected cultivars

Notes:

• Roses have been divided into several categories depending on habit and breeding:
  • Species roses - modern roses are descended through these; basically has a five-petaled single flower
  • Old roses - cultivated before hybrid tea roses were introduced; flowers are generally fragrant; many suitable for trellising
  • Hybrid tea roses - large-flowered shrub roses; these roses succeeded old roses through breeding; some are scented; many varieties; repeat flowering.
  • Floribunda roses - similar to hybrid teas with stems that are more branched; flowers may be single, semi-double or fully double; recent rose breeding between crosses of modern Hybrid teas with Floribundas has produced  large-flowered Floribunda varieties (often referred to as Grandifloras); repeat flowering.
  • Modern shrub roses - hybrids principally between species roses and old roses; flowers are single or semi-double and open out flat; generally repeat flowering.
  • Climbers and ramblers - rangy, climbing roses; flowers borne in clusters over short periods in June and July; need support.
  • Miniature roses - group of small, hardy shrublets; many colors from semi-double to double flowers; flowers borne in small clusters; repeat flowering.
• Pruning is of utmost importance for most roses.
  • Flowers are borne on new growth.
  • It is important to dead-head in order to encourage new buds to break which eventually will produce new flowers.
  • Once dormant in the winter, heavy pruning is done, often cutting back shrubs by 2/3 their original height; crossing branches, diseased and old wood is removed at this time.