The Well-Tended Perennial Garden The Essential Guide to Planting and Pruning Techniques, Third Edition
autumn and also prevents self-seeding. Old flowering stems and foliage often decline after blooming; if this occurs, cut down to ...
sterile; thus deadheading is not required to prolong bloom, although you may want to remove spent flower stalks for the sake of ...
foliage can remain for the winter. Plants that were not cut back usually blacken and turn mushy with frost and are best cut down ...
Cephalaria gigantea Tatarian cephalaria caprifoliaceae Yellow pincushion flowers on tall wiry stems; compound leaves 5–7 ft. (3 ...
Ceratostigma plumbaginoides plumbago plumbaginaceae Small blue flowers; small green leaves 8–12 in. high; 12–18 in. wide Full su ...
attractive and extend the interest of the plant so are best left on. Plants may flop, particularly if given too much shade. Plan ...
late July may mean flowers in October rather than September. In the South pinching can go as late as mid-August, particularly fo ...
naturally full and dense to the base. In fact, pinching or cutting back ‘Mei Kyo’ may delay the flowers too much in the North, s ...
since sporadic flowering usually occurs into summer, before any major heat sets in, even without pruning. Flowering lasts longer ...
Clematis recta ground clematis ranunculaceae Fringed, fragrant white flowers; compound blue-green leaves 3–4 ft. high; 3 ft. wid ...
area with good air circulation, espe- cially in humid climates. related plantS Clinopodium grandiflorum ‘Variegata’, with white- ...
stalk to new lateral flower buds, if present, or to the basal foliage if no side flowering is evident. Deadheading keeps plants ...
will keep plants vigorous, though an easier solution is to let self-sown seedlings take the place of tired plants. related plant ...
‘Moonbeam’ is an outstanding cultivar, but it lacks a bit in winter hardiness. Winter losses occur with unmulched plants in zone ...
not cut back further for the winter. Prune off any damaged growth in the spring. If allowed, plants will reseed to monstrous pro ...
dramatic architectural plant reaches its true potential only in cool-summer climates. Plants will sometimes need staking even un ...
Delphinium elatum delphinium ranunculaceae Blue, purple, or white flower spikes; palmately cut leaves 4–6 ft. high; 1–2 ft. wide ...
Mid-Century Hybrids, such as ‘Ivory Towers’, ‘Moody Blues’, ‘Rosy Future’, and ‘Ultra Violets’, have stronger stems and are more ...
Dianthus barbatus sweet William c aryophyllaceae Dense clusters of flowers atop green leaves 10–18 in. high; 12 in. wide Full su ...
grass shears, or simply use hedge shears for pruning. Pruned branches are easily cleaned up with a shrub rake. You may get a spo ...
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