Some of the best low pollen trees are the females of dioecious species such as ash, poplar, willow, cedar, juniper, cottonwood, mulberry, osage orange, xylosma, yew, box elder, podocarpus, fringe tree, holly, pepper tree, smoke tree
, coffee tree, sassafras and red maple.
Chartreuse New Zealand flax and smoke tree
(Cotinus 'Golden Spirit') add a yellow glow at either end, while pink-flowered rock-rose 'Victor Reiter' and wispy restio (Cannomois virgata) soften the other plants' spiky forms.
Round, deep plum leaves cover this multi-stemmed smoke tree
through summer and into autumn, then turn reddish before dropping in winter.
Cradle Stakes: 1 D Gibson, Tinkerbell 2 J Dun, Smoke Tree
Texas Tart; 3 C Arnold, Iorsa Harvest Moon.
Tough plants such as wispy leucadendron and 'Royal Purple" smoke tree
soften the wall behind it, while tufts of fairy lily (Zephyranthes candida) grow in front.
Trees, shrubs, and vines Zones 7-9, 14-17: For vivid autumn color in your garden, now's the time to buy and plant deciduous trees such as birch, Chinese pistache, Chinese tallow, crape myrtle, dogwood, Ginkgo biloba, Japanese maples, liquidambar, persimmon, and 'Raywood' ash; colorful shrubs including deciduous azaleas, barberry, oakleaf hydrangea, smoke tree
(Cotinus coggygria), and viburnum; and vines such as grape, Parthenocissus, and wisteria.
Look for unblemished specimens with beautiful shapes or variegated colors; we love the foliage of oak, sycamore, and smoke tree
(pictured above, from top, as well as Japanese maple, Chinese pistache, and ginkgo.
Now a new L-shaped lap pool and elevated dining area are surrounded by an elegant tapestry of tough plants like silvery artemisia, chartreuse euphorbias, bronze cordyline, junipers, lavender, red kangaroo paws, ornamental grasses, Phormium 'Dusky Chief', and smoke tree
. Stairs link the upper and lower gardens; large glazed pots filled with succulents and other easy plants dress the patios.
Then she considered seasonal color, favoring a sunrise-to-sunset theme that blends reds, oranges, and purples (cannas, crocosmia, Persicaria 'Red Dragon', salvia, smoke tree
, and coneflowers), as well as sea blues (catmint, Geranium 'Rozanne', lavender, Verbena bonariensis).
'Firebird' penstemon with purple Cotinus (smoke tree
) works well too.
Follow Monika Hellwegen's lead and use 'Royal Purple' smoke tree
(Cotinus coggygria) as an accent plant among green grasses, shrubs, and trees.
Also look for colorful shrubs--deciduous azaleas, barberry, oakleaf hydrangea, smoke tree
, and Viburnum; and vines such as Parthenocissus.