Creeping form of Alpine tea tree from the highest mountains of Tasmania. Low evergreen shrub with deep green tiny leaves set densely on the stems. Forms a complete ground cover in time with the ability to inhibit weeds. The new stems are an attractive cinnamon red before switching to gray. In early summer tiny pink buds open to starry white flowers. For several weeks they obscure the foliage. To 1′ tall but usually much lower and spreading to 3′ x 3′ in several years. Full sun and rich, well drained soil with light but consistent summer irrigation. Drought adapted when established. Best on warm south or west facing aspects. Avoid exposure to intense subfreezing east wind- in those areas plant it in a protected location. Always handsome ground cover shrub. Amazing at the edge of containers or near boulders as this plant will faithfully follow every contour. Cool.
Family: Myrtaceae
Leptospermum scoparium ‘Washington Park’
Manuka. This is a wonderful very upright wispy evergreen shrub with tiny leaves that turn maroon in winter and masses of white flowers in early summer. Flowers are born on wood from the previous season and are much larger than the foliage. The effect in early summer is a shrub clad in snow. To 8′ tall x 4′ wide in 5 years. Full sun and a protected position, such as against a south facing wall. This form is from the Washington Park Arboretum in Seattle where it has thrived for many years. A selection made from high elevation inland New Zealand. Grows very fast w/ light summer water. Excellent fine textured plant. Moderate deer resistance. Cold hardy to a little below 10ºF- it has been damaged but recovered from lower temperatures. Very easy to grow wild looking plant. Drought adapted when established.
Luma apiculata
Chilean Myrtle is a very good looking dense evergreen shrub/tree in our climate. It requires a slightly protected location as it can be tender when young. Protect young plants from temperatures below 15ºF. With age and establishment it gains much, much more cold hardiness enduring 5ºF with just light leaf burn. The leaves are deep, dark green and rounded with a sharp tip. Almost formal looking. In protected gardens it can attain tree like status in about 8 years. Most often in our region its a shrub of about 12′. And perhaps the most impressive thing about this Chilean/Argentinian tree is the exfoliating orange to tan bark it achieves with age. In mid-summer masses of small white fragrant myrtle flowers with a central boss of exerted stamens smother the whole plant. These turn into sweetly edible if not a little mentholated black berries. They can be messy so locate away from paths, pavement. Birds almost always make off with the berries so that is helpful. Avoid direct exposure to subfreezing gorge winds. In gardens subject to that locate on a south or west facing wall. Very drought adapted when established, but consistent water and average soil will yield the best growth. Grows about 1′-3′ per year. Moderate deer resistance. Not a good plant for cold rural gardens. Tree size specimens are phenomenal and worth the effort to protect when young. Excellent performance at the Oregon coast.
Melaleuca squamea
Honey swamp myrtle hails from wet locations in Tasmania. Its a tender shrub inland but it thrives in zone 9 on the Oregon coast. A fur clad fine leaved shrub that is a true myrtle. In April-May the whole plant is home to stamen dominated purple bottlebrush flowers. Exquisite. Very easy container subject that can be moved to a protected place if severe cold (below 20ºF) threatens. Excellent shrub for sandy substrates though it takes well to heavy clay too. Light consistent summer water. To 5′ tall by 2′ wide in 7 years. Great plant for hummingbirds and butterflies. Inland we have yet to test the cold hardiness in the ground. It should easily take 15ºF but probably not lower. Evergreen foliage is fragrant when disturbed. Good deer and rabbit resistance. Absolutely titillating in bloom. Native to mid and high elevations of Tasmania. Seed grown.
Myrtus communis ‘Andy’s Hardy’
Sweet Myrtle is a dapper clean evergreen shrub for full hot sun and poor well drained soils. This cold hardy selection of Sweet Myrtle has endured temperatures to 5ºF once established. Formal looking evergreen with sweetly fragrant foliage when disturbed. In summer to early autumn simple white flowers with a protruding showy boss of white stamens appear like little bouquets followed by elongated black berries. Incredibly drought and heat tolerant. Protect from subfreezing east wind. Takes west aspects that are blasting hot – all day or just for part of the day. Not often seen for sale this form grows moderately slowly to 3′ x 3′ in 6 years. Takes very well to pruning which should only be done in late spring. Moderately deer resistant. Little water when established, light irrigation speeds growth. Sweetly aromatic foliage. Damage that occurs from extreme cold events is erased by new growth in spring. Do not cut back burned foliage until new growth pushes. Recovery in one season is remarkable. Wonderful hardy pretty shrub.
Myrtus communis ‘Emerald Compact’
This is a seedling myrtle that showed up in our nursery. I moved it to a stock bed and observed it for several years. Its proven to be hardy to lower than 15ºF and its a dense and compact growing form. Good looking evergreen that has deep forest green foliage with a slight gloss. Dense growth forms a shrub to 3′ x 3′ in 6 years- progressively larger after that. In late summer to early autumn a procession of pure white flowers with a central boss of exerted stamens. This aromatic shrub is adapted to hot dry conditions and light to little water once established. In fact, the more lean the conditions the hardier this myrtle will be to cold. Black elongated drupes follow the flowers. Formal appearance that can be even more formal with pruning. Though, its naturally dense habit makes pruning less likely. Great against baking hot south facing walls. Loves the zone of south facing planters that are asphalt on one side and a hot wall on the other. Best as a specimen- not a hedge as it can be prone to damage in severe winters ( below 10ºF) which recovers quickly in spring but makes it less useful as a hedge. Great container subject. Moderate deer resistance. Tolerates VERY dry summer conditions. Full sun to quite a bit of shade at the expense of a dense habit. Very durable urban shrub. Protected location. Locate out of the path of subfreezing east wind.
Xera Plants Intoduction
Myrtus communis compacta ‘variegata’
We love Myrtles they are so drought tolerant and smell so good and we’re finding more and more cultivars that are hardy in Portland. This one is a real surprise because the green form of ‘Compacta’ is not nearly as hardy as this charming variegated version. A slow growing perfectly round shrub with light green leaves edged in cream- brush them- they smell so good. To 3′ x 3′ in 8 years. In summer small white flowers have a sexy little brush of white stamens. CUTE. Full sun to very light shade in a warm protected position. Mine are against my house on the south side and they’ve grown into a little hedge. They have only had slight tip damage in the coldest winters, but spring recovery is rapid. In fact it can freeze to the ground and resprout and regain its stature in a season. Don’t go planting this shrub out in the open, exposed to wind. It will fry. Instead keep it close and it will be fine. Extremely drought tolerant.
Myrtus communis ssp. Tarentina
Dense, dark green, and aromatic this form of sweet myrtle is also extraordinarily hardy to cold when established. Small glossy deep green foliage is sweetly fragrant when disturbed. Its held densely on upright stems on a compact growing shrub for full sun, a hot position, and average to poor well drained soil. In late summer its decked in white flowers with conspicuous protruding stamens. They are sweetly fragrant and turn into WHITE berries by autumn. This shrub is best in a protected hot spot with as little summer water as possible when established. Too much summer water leads to rank growth that does not harden in time for winter cold. Grow this shrub lean and mean and its perfectly hardy to cold. It can take any amount of summer drought. Slow growing to on average 3′ x 3′ and rounded in 5 years- larger with time and larger in richer soil. Full hot sun all day and good air circulation. Basically plant your myrtle, water it and then leave it strictly alone. Moderate deer resistance. Very good scale and adaptability to topiary. Foliage takes on deep purple tints in winter. Very easy to grow. Plant early so that it is well established going into its first winter