Cistus x ladanifer ‘Blanche’

Very large growing deep green aromatic Cistus with enormous clear white flowers for an extended period in May-July. The flowers are so large they are reminiscent of the Matilija Poppy (Romneya coulteri) and they virtually obscure the foliage in bloom. To 8′ tall x 8′ wide very quickly. The winding and shredding trunks that develop are cinnamon brown and have a wild, gnarly appearance with age. Excellent cold hardiness especially if you avoid rich, amended soils. Native unimproved soils that drain are best. Handles clay soils well especially if on a slope. Completely drought adapted, no summer water is required. The resinous deep green foliage emits a sweet balsam aroma on hot days.

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Cistus x platysephalus

Excellent performance- including superior cold hardiness and incredibly floriferous is why we grow this moderately large spreading Rockrose. Grass green linear foliage in dense and always fresh on an upright and spreading shrub. Grows in tiers which is pretty and displays the copious single white flowers well. Flowers appear daily from May to July. To 3′ x 5′ and low and spreading initially then lifting itself up gradually. Excellent cold hardiness. We’ve tried many, many Cistus planted out at our Wholesale Nursery site in Wilsonville- at least one zone colder than the city of Portland. This carefree shrub has sailed through 5ºF multiple times with NO DAMAGE and thrives in clay soil on a hillside with absolutely no summer water. As with all Cistus avoid overly enriched soil and too much summer water. Neglect is this tough shrubs friend. Moderate deer resistance. This is confused in the trade and may also show up from time to time as ‘White Gem’- its not.

 

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Cistus x pulverulentus ‘Sunset’

Compact low growing Rockrose with spectacular hot magenta flowers from May to July and sporadically after that. The large flowers (3″) cover the handsome felted light green foliage. To 2′ x 3′ in 6 years. Full sun and poor to average well drained soil. Light to little summer water. Hardier to cold and more compact if you avoid rich soil. Tough little evergreen plant. Protected locations like a hot south facing hillside are ideal.

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Cistus x ‘Snowfire’

A large growing improved rockrose with huge white flowers with a large red basal blotch on each petal. Deep green foliage takes on maroon tints in cold weather. To 4′ tall and 8′ wide forming a dense outline. Blooms May to July in a daily procession of flowers. Each blossom is 3″ across. Excellent cold hardiness to 5ºF or lower. Grows quickly in average, well drained soil Avoid overly enriched sites which will decrease cold hardiness and lead to rank growth. Lean conditions produce the most dense and cold hardy shrub. Great for rough areas in the back ground. Completely drought adapted- no summer water required. Give it room to spread.

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Cistus x dansereau ‘Jenkyn Place’

After growing a whole bunch of Cistus this variety has risen to the top. Upright growing deep green evergreen shrub to 5′ tall and 5′ wide. The thin deep green leaves have the sweet fragrance of balsam. Beginning in May a constant procession of 3″ white flowers with a red basal blotch on each petal. Each flower lasts a day but there is a constant supply waiting in the wings. Full sun and average well drained soil. Tolerates clay soils well. If you give it a touch of supplemental summer water it will often extend the bloom season all the way until September. Exceptionally cold hardy. One of the finest rock roses.

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Cistus x obtusifolius

Compact white rockrose is a fantastic hybrid that gives this shrub several outstanding attributes. A dense compact habit heavily clothed in small deep green leaves. To just 3′ tall and 4′ wide forming a dome. This dense habit resists splitting in ice and snow. From May to July a massive constant procession of pure white flowers. Often bloom is so heavy that it obscures the foliage. Each flower lasts just a day but is replaced by a seemingly never ending supply. In autumn the spent flower calyxes turn bright orange red and are showy- especially when backlit by the sun. Great landscape shrub for hot sites in any well drained soil that does not become boggy. Avoid overly enriched soils for a more cold hardy and dense growing plant. Easy Cold hardy to near 5ºF. Little to no summer water.

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Cistus x canescens ‘Albus’

A tough, cold hardy and spectacular Rockrose in bloom. Gray foliage is a great backdrop to the huge (3″) pure white flowers with a central zone of yellow stamens. The flowers appear daily but en mass for weeks in April to early June. Moderate growing evergray shrub to 3′ x 5′ in any well drained soil. Extremely drought adapted and requires NO supplemental irrigation when established. Avoid overly enriched soils which will lead to rank growth and quite a bit less cold hardiness. At our wholesale nursery this wonderful shrub has not suffered cold damage down to 5ºF. Lean conditions increase hardiness. Hellstrips, low water garden sections. Hot dry biomes. A great rockrose.

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Cistus crispatus ‘Warley Rose’

Low growing shrub that is also one of the hardiest Cistus to cold. To 2′ tall and 3′ wide in 4 years. Large bright rose colored flowers appear for an extended time in late spring to early summer. The crinkly gray green foliage is dense and good looking year round. Full sun and sharp drainage. Excellent bank cover or shrub for a hell strip. Light to little summer water when established. Forms a dense evergreen cover.

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Cistus x pagei

Rockrose are famous for the sweet balsam fragrance emitted from their foliage. The chemical ladanum is responsible and the heart shaped thick leaves of this hybrid are thick with it. Hot days bring a wave of perfume from Cistus x pagei long after its profuse display of pale pale pink flowers. Very heavy bloomer. To 5’x 5′ in 5 years. Exceptionally hardy to cold and very very drought tolerant as well. Excellent low care shrub for rough areas. Full sun and well drained soil. Light summer water to establish. Moderate deer resistance.

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Cistus x bornetianus ‘Jester’

We’ve grown a LOT of pink flowered rockrose. This is our favorite by far and several important distinctions make that so. The large flowers are clear pink on the edges fading to near white around the boisterous orange/yellow center. It blooms profusely and the elegant but subtle flower color virtually marries its gray leaved backdrop. Excellent.  To 3′ x 4′ in 5 years ‘Jester’ exhibits great cold tolerance as well as drought adaptation. Full sun and well drained soil with little summer water once established. The large (3″) Pink flowers appear for 4-6 weeks in late spring. Fragrant foliage is waxy and could be unpalatable to deer. Long lived for this genus.

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