This bold container composition has an unusual mix of black mondo grass (Ophiopogon planiscapus ‘Nigrescens’), brilliant gold ‘Delta Dawn’ coral bells (Heuchera ‘Delta Dawn’), yellow-leaved ‘Baggesen’s Gold’ box honeysuckle (Lonicera nitida ‘Baggesen’s Gold’) and white-flowering heather (Calluna vulgaris). The most unexpected part is the sweet, citrusy perfume of ‘Eternal Fragrance’ Daphne (Daphne transatlantica ‘Eternal Fragrance’), which blooms well into fall.
Soil depth. The quantity of soil you need in a container depends on the type of plant and how deep the roots grow. 12 inches for annuals 12 to 18 inches for perennials 18 inches to 2 feet for shrubs 2 to 3 feet for small trees
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