Now you have a choice. You can do a second search for "green giant arborvitae seeds," and hope to find some locally. A third option, the lowest-cost of all, is the DIY approach. You'd simply identify healthy arborvitae trees that are already flourishing in your area, and harvest seeds from those. This is chancier — a study by Illinois' Prairie Research Institute found 1 percent germination from some of its wild-harvested seeds, while commercially available seeds germinated at a rate of 37 percent — but if you succeed you'll grow trees that are well adapted to your area.
To have the highest likelihood of success, the American Conifer Society suggests harvesting conifers' seed-bearing structures as they're just reaching maturity.
In the case of arborvitae, that's when yellow-green hue of the small "conelets" begins darkening to brown, but before they open up and scatter their seeds to the wind. Scour the woods or neighbors' yards, if they're agreeable in your area for healthy, vigorous arborvitae that have the look you want. Small yellow flowers bloom in June and July.
Foliage turns reddish-bronze in autmn. Insect and disease resistant. Tolerates dry, sandy soils. Sun or partial shade. Grows to 7 feet with equal spread. Tolerant to urban conditions, sun or shade. Fothergilla gardenii Dwarf Fothergilla : Deciduous shrub; fragrant, white, bottlebrush-like flower spikes in spring before leaves appear; dark green summer foliage followed by good multi-colored fall foliage; plant in sun or partial shade; non-alkaline soil; hardy; excellent for foundation plantings, borders or masses.
Erect growth habit with glossy leaves. Grows 50 to 60 ft. Seedless variety. Gleditsia Honeylocust : Useful as street or shade tree.
Most varieties grow 35 to 45 ft. Hamamelis vernalis Vernal Witch Hazel : Deciduous shrub; grows 10 ft. Ilex verticillata Winterberry : Deciduous holly; 6 to 8 ft. Native to swampy places, but does well in light to medium moist loam. Both sexes needed for pollination. Itea virginica Virginia Sweetspire : Small, erect-branched shrub produces fragrant upright flower racemes in June and July. Foliage turns scarlet and crimson in the fall.
Juniperus chinensis 'Hooks' Hook's Juniper : Evergreen shrub; height of ft. Moist soils are acceptable as long as they are well drained. Optimum growth occurs in sun with a pH of 5. Single, golden-yellow flowers in spring. Bright green stems all year. Tolerates shade well. Ligustrum obtusifolium regelianum Regal Privet : Low, dense spreading shrub with a rounded shape.
Grows 5 to 6 ft. Has a white flower and a black berry-type fruit. Valuable for growing in poor conditions but prefers dryers sites. Can tolerate severe pruning. Sun or partial shade, pH 6. Lindear benzoin Spice Bush : Dense growing native shrub with small yellow flowers in April, followed by glossy red frutis.
Foliage and twigs have a spicy fragrance. Sun or shade, pH 6. Liquidambar styaciflua Sweet Gum : Large conical shaded tree, growing to 60 ft. Star-shaped foliage turns brilliant fall colors. Has corky bark. Lonicera fragrantissma Winter Honeysuckle : Semi-evergreen shrub with rounded leaves growing 6 to 8 feet in height with equal spread. Highly fragrant white flowers in April. Bright orange-scarlet tubular flowers from June to October.
Long slender red-purple buds open to 5 in. Myrica Pensylvanica: Northern Bayberry : Upright, rounded shrub with decorative gray berries on female only well into winter. Prefers well drained, sun or partial shade, pH 5. Foliage turns deep red in the fall. Nyssa sylvatica Black or Sour Gum : Pyramidal tree growing to 50 ft. Glossy, leathery leaves that turn intense shades of orange and red in fall. Oxydendron arboreum Sourwood or Sorrel Tree : Pyramidal, multi-stemmed or low branched habit with white lily-of-the-valley type flowers in July or August, forming prominent seeds which turn vivid scarlet in fall.
Excellent specimen grows to 25 ft. Picea pungens glauca Colorado Blue Spruce : Conical evergreen tree with blue color. Grows to 60 ft. Slow growing, height 3 ft. Silvery blue color. Picea omerika Serbian Spruce : Narrow, conical evergreen grows 50 to 60 ft.
Its needles are glossy dark green with white stomatic lines underneath. Useful as a specimen or in groups. Slow growing to 9 to 10 ft. Unique habit makes this a facinating plant, even for a small garden. Pinus flexilis Limber Pine : Evergreen tree; ft tall; ft. Pinus mugo Mugo Pine : Hardy and rugged, dwarf, mushroom-shaped evergreen shrub. Press the seed onto the surface of the compost mixture.
Cover it with a very thin layer of coarse sand. Mist the sand liberally to settle it. Loosely wrap each starter pot with plastic wrap.
Place the pots inside the refrigerator for two months to cold stratify. Moisten the compost mixture whenever it feels barely moist on the surface. Do not let it dry out. Move the starter pots to a sunny spot. Warm the pots to 70 F using a germination mat if daytime temperatures stay below 70 F.
Your seeds will naturally stratify during the cold winter. Germination usually occurs in May or during the spring season. Your cart is empty. Stock Select Required. American Arborvitae Thuja occidentalis The American Arborvitae is a slow growing evergreen tree that reaches 25 to 40 feet tall.
Stratification Requirement: None required.
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