Horticulture IIPlant ID Week 7

ASTILBE cv.

Astilbe Hybrids• Herbaceous

Perennial• Groundcover

Growth Habit– H: 12-18”– W: Spreading

• Part Shade - Shade

• Arrangement and composition:– Basal and

Compound• Shape– Elliptical– Length 1-1 ½ ” – Width ½ ”

• Margin – Serrated

• Veins– Pinnate

ASTILBE cv.Astilbe Hybrids

• Flower– Panicle– Spring (May)– Red-White-Pink

• Fruit– A brown tiny

seed where flowers were into late fall

ASTILBE cv.Astilbe Hybrids

ASTILBE cv.Astilbe Hybrids

• Leaflets are opposite with 1 terminal leaflet• Stem and leaves have hirstute (bristly) hairs

BUDDLEIA DAVIDIIButterfly Bush

• Semi-Deciduous Perennial

• Shrub Growth Habit– H: 6 - 8’– W: 4 - 6’

• Sun - Part Sun

• Arrangement and composition:– Opposite and Simple

• Shape– Linear - Ovate– Length 3-4” – Width 1”

• Margin – Finely Serrated

• Veins– Pinnate

BUDDLEIA DAVIDIIButterfly Bush

• Flower– July-Frost– 4-10” Panicle– Purple, white,

red, pink– Fragrant

• Fruit– Cluster

BUDDLEIA DAVIDIIButterfly Bush

BUDDLEIA DAVIDIIButterfly Bush

Cultural Practices• Bloom occurs on current season’s growth• Prune yearly

GIBASIS PELLUCIDATahitian Bridal Veil

• Indoors- perennial; Outdoors- annual

• Vine–Height: NA–Width: NA

• Diffuse Light

• Arrangement and composition:– Alternate and Simple

• Shape– Linear– Length ½ ”– Width ¼ ”

• Margin – Entire

• Veins– Parallel

GIBASIS PELLUCIDATahitian Bridal Veil

• Flower– White

• Fruit– Inconspicuous

GIBASIS PELLUCIDATahitian Bridal Veil

GIBASIS PELLUCIDATahitian Bridal Veil

• Underside of leaf shows minute lines of white dots

GYNURA AURANTIACAVelvet Plant

• Interior perennial; Exterior Annual

• Vine-like– Height: 8-12”– Width: 12-20”

• Sun - Part Shade

• Arrangement and composition:– Alternate and Simple

• Shape– Elliptical– Length 3-4”– Width 1 – 1 ½ ”

• Margin – Serrated

• Veins– Pinnate

GYNURA AURANTIACAVelvet Plant

• Flower– Yellow– Offensive Odor

• Fruit– White/Gray– Similar to

dandelion

GYNURA AURANTIACAVelvet Plant

Hydrangea macrophyllaHydrangea

• Deciduous perennial

• Shrub Growth Habit– Height: 3’ – Width: 3’

• Part Sun - Shade

• Arrangement and composition:– Opposite and Simple

• Shape– Ovate– Length 6” – Width 3”

• Margin – Serrated

• Veins– Pinnate

Hydrangea macrophyllaHydrangea

• Flower– White, Pink, TRUE

Blue, Purple– Spring

• Fruit– Brown Capsule

Hydrangea macrophyllaHydrangea

Hydrangea macrophyllaHydrangea

Culture• Pinks and blues affected by pH of soil.

Alkaline = Pink and Acidic = Blue (has to do with availability of aluminum at low pH)

Iberis sempervirensEvergreen Candytuft

• Evergreen Perennial

• Groundcover Growth Habit– Height: 4” – Width: 18”

• Sun - Part Shade

• Arrangement and composition:– Alternate and Simple

• Shape– Linear– Length 1” – Width 1/8”

• Margin – Entire

• Veins– Pinnate

Iberis sempervirensEvergreen Candytuft

• Flower– Spring– White– Umbel (cluster of

flowers); each flower has 4 petals 2 smaller

• Fruit• NA

Iberis sempervirensEvergreen Candytuft

Horticulture I Week 7 Review

JUNIPERUS CONFERTAShore Juniper

ILEX X ATTENUATA ‘Fosteri’Fosteri Holly

ILEX X ATTENUATA ‘Savannah’

Savannah Holly

ILEX VOMITORIA ‘NANA’Dwarf Yaupon Holly

Ilex crenata ‘Helleri’Helleri Holly

Juniperus horzontalis ‘Plumosa’, ‘Bar Harbor’, or ‘Wiltonii’ Creeping Juniper