Candytuft

80321It looks like sweet alyssum, but is not even close. The tiny white flowers and finely textured foliage work almost as well for similar uses in the landscape. In fact, the plants are most often grown as short term warm season annuals. However, candytuft, Iberis sempervirens, is really a perennial that can be cut back in autumn, regenerate through winter, and bloom for spring and early summer.

One must really examine candytuft closely to see that it is related to cole crop vegetables like broccoli, cauliflower, cabbage and Brussels sprouts. That is why is has an odd aroma when cut back. Mature plants have the potential to get nearly a foot deep, but typically stay lower. They can spread a bit wider than a foot. Candytuft can tolerate a slight bit of shade, but prefers sunny exposure.

If planted closely together, candytuft can form a nice small scale ground cover. It mixes nicely with stones, and cascades slightly over the edges of low stone retaining walls. It is more substantial than sweet alyssum, and works better for permanent planting in borders and along walkways. The barely perceptible floral fragrance of individual plants can be quite appealing in larger volumes.

Purple Leaf Plum

70308Of all the fruitless fruit trees, the purple leaf plum is the most popular here, but probably not for the obvious allure of its rich purplish or bronze foliage that maintains color until it falls in autumn. Purple leaf plum is simply so easy to grow. It does not need to be pruned as regularly as flowering peaches or flowering crabapples do. It is not as sensitive to sunscald as flowering cherries are.

Most purple leaf plums bloom with double or single pink flowers. Old varieties that bloom with white flowers are uncommon. Mature trees might get taller than a two story house, with nicely rounded canopies. Trees are usually pruned up onto single straight trunks, although mature trees in older landscapes might have a few sculptural trunks. Purple leaf plum want full sun and occasional watering.

Cineraria

80314This is an extreme bloomer! Cineraria, Pericallis X hybrida, blooms with composite flowers, which means that each small daisy flower is really a whole bunch of minute flowers clustered together to look like a single flower. As if this were not impressive enough, a whole bunch of these composite flowers are clustered together on top of each big wide floral truss. They are not easy to ignore.

Blue, red, purple or pink bloom can be so profuse that the rich green basal foliage is only visible around the edges and below the domed trusses. Individual flowers usually (but not always) have white halos around dark centers. The soft leaves below are somewhat wide and rounded, with variably toothed margins. Big plants can get as high and wide as a foot. Some are more compact.

Cinerarias are most often obtained while blooming, enjoyed as potted plants, and then discarded after bloom, although with a bit of effort and shelter from frost and heat, they can be sustained as potted perennials to bloom again. They can be grown as short term bedding plants after frost in spring, but they require a slight bit of partial shade, regular watering and richly organic medium.

Almond

70301It is known more as a small to mid-sized shade tree that produces edible nuts, but almond, Prunus dulcis, also blooms magnificently as soon as the weather allows. Actually, it often blooms a bit earlier than it should. Nut production can be ruined if rain dislodges blossoms or developing nuts. The profuse white flowers are small but slightly larger than those of other related stone fruit trees.

Yes, almond is the same genus as apricot, cherry, plum, peach and the other stone fruits. The fruit is actually very similar, but instead of developing into sweet flesh, it merely forms a hull that dries and separates from the nut within. The nuts are the large seeds or stones, like peach pits that can be eaten. Hulled but unshelled almond nuts are about one or two inches long. Because the nuts get shaken from trees instead of picked, trees can be allowed to get about two stories tall.

Transvaal Daisy

80307There is some controversy about the identity of the flowers that Micky Mouse picks at the porch to present to Minnie Mouse when she answers the door. Some insist that they are Transvaal daisy, Gerbera hybrida. When they are not in black and white, the substantial daisy flowers are cartoon hues of yellow, orange, red, pink and white, sometimes with chocolatey brown or black centers.

Transvaal daisies are always available as cut flowers, but bloom best in cool spring and autumn weather in home gardens. Most garden varieties have single flowers on bare stems. Most cut flowers are semi-double. Double flowers that resemble zinnias, and spider flowers that resemble spider mums, are rare. Coarse basal foliage gets almost a foot high and a foot and a half wide.

Because the foliage is so vulnerable to snails, Transvaal daisy is usually grown in pots rather than in the ground or immobile planters. Besides, potted plants can be brought into the home or put in prominent spots while blooming, and then put out of sight between bloom. Transvaal daisy wants partial shade, regular watering and occasional feeding. It can take full sun exposure if not too hot.

Rocky Mountain Juniper

70222It is no coincidence that many plants with gray foliage are from mountains or deserts. Gray foliage is ‘glaucous’, which, like glaucoma, diffuses light. This helps to protect it from desiccation and scald when sunny weather is also hot, windy or arid. The glaucous foliage of Rocky Mountain juniper, Juniperus scopulorum, is what distinguishes it most from related North American junipers.

Garden varieties of Rocky Mountain juniper are even grayer than wild plants. Some are even silvery. Also, they tend to maintain a somewhat symmetrical form. Most are compact, with dense evergreen foliage. Some loosen up with age. All want full sun, and seem to enjoy warmth. They lean away from shade. Color seems to be better if plants get watered occasionally through summer.

‘Skyrocket’ is very narrow while young, like a small silvery Italian cypress that gets only about fifteen feet tall. ‘Blue Arrow’ is similar, and becoming more popular because it is more resistant to disease. ‘Medora’ and ‘Cologreen’ are more bluish green. All get plump with age. ‘Wichita Blue’ and ‘Moonglow’ are more conical. ‘Wichita Blue’ is more bluish. ‘Moonglow’ is more silvery gray.

Oregon Grape

80228Oregon has good taste. Douglas fir, one of the most useful of timber trees in America, was selected as the state tree. Oregon grape, Mahonia aquifolium, was designated as the state flower. Although the tight clusters of tiny bright yellow flowers that bloom about now may not be as flashy as other state flowers, they contrast handsomely against the glossy and deep dark green foliage.

The pinnately compound evergreen leaves are larger than they seem to be. The smaller individual leaflets that resemble holly get noticed first. They are are not quite as wavy, spiny or thick as leaves of English holly are, so can work well where spiny foliage would be objectionable. Dark grayish blue berries are not abundant, but happen to make good jelly for those who hunt for them.

Mature plants get about five feet tall and broad, and can spread wider like Heavenly bamboo does. Foliage might be a richer shade of deep green, with a slightly more relaxed texture, in partial shade. A few garden varieties are available, including some that are more compact, and some with more rounded leaflets. Old canes should be pruned out as they get replaced by newer canes.

Daphne

70215When the weather warms up a bit between frosty weather and winter storms, the rich fragrance of winter blooming daphne, Daphne odora, is at its best. The domed trusses of tiny pale pink flowers are not much wider than a quarter, so are easy to overlook while investigating the source of the fragrance. ‘Aureomarginata’, the standard cultivar, has glossy evergreen leaves with narrow pale yellow margins. Mature plants are only one or two feet high. All parts of the plant are incidentally toxic.

It is no mystery why daphne is rare. It can be rather finicky, and unpredictably so. It purportedly wants rich and slightly acidic soil, in a warm but partially shaded spot; but can be difficult to grow even in ideal conditions. Yet, it is sometimes seen doing well in full sun or in dense soil of questionable quality. To make matters worse, even the healthiest plants live only about five to eight years.

Snowdrops

80221Where winters are more wintry, garden enthusiasts get to brag about their snowdrops as they emerge and bloom through melting snow. Diminutive white flowers against a backdrop of white snow may not look like much to us. We have more colorful flowers through winter, without the snow. Their kind of snowdrops, Galanthus specie, need more winter chill than they would get here anyway.

We have our own kind of snowdrops though. Leucojum aestivum does so well without significant winter chill that it can naturalize, and sometimes shows up in well watered gardens and riparian areas without being planted intentionally. Leucojum vernum is similar, but blooms with only single or paired flowers, rather than three or more small and pendulous flowers on each arching stem.

The rubbery leaves are about half an inch wide and a foot tall. They stand rather vertically, and can get nearly twice as tall if they need to grow through groundcover. The flower stalks are about the same height, and with the weight of the drooping flowers, might lean a bit outward from the foliage. Each flower has six white tepals with a yellowy green spot near the tip. All plant parts are toxic.

Agonis

70208Fans of the Brady Bunch might recognized agonis, Agonis flexuosa, from the front yard of the Brady Residence. That particular tree was rather dark olive green, and might have grown two or three feet annually to reach the upstairs eaves. Most of the popular modern cultivars are darker bronze or burgundy, and probably stay a bit shorter, but attain the same elegant and slender form.

The narrow evergreen leaves hang softly from limber stems, like the foliage of weeping willow. Anyone who has pruned agonis has likely noticed that the foliage is aromatic if disturbed. The tiny pinkish white flowers that bloom in spring or summer are not much to look at, but can be fragrant if there are enough of them. The fibrous and furrowed bark is quite distinguished for a small tree.

Agonis is not too demanding as long as it gets enough sunlight. It will lean away from shade. It prefers to be watered somewhat regularly through summer, although established plants can be quite happy if watered only a few times. Too much water rots their roots. If pruned to promote branching while young, and pruned for confinement as it matures, agonis can be a striking unshorn hedge.