SHRUBS > HELIANTHEMUM
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HELIANTHEMUM GUIDES
PruningVarieties
Only about a metrical unit gamy , Rock Rose shrub offer advantage few plants of that size do .
It is a no - care option that get by in conditions that other flowering plant fade in – piteous soil , fruitlessness , and ocean - spray are as if nothing .
Rock Rose ‘Orchard’s Royale’
It provide yr - orotund low - growing leafage of a cool green hue and oodles and oodles of simply delightful bloom from pastel yellow to crimson Marxist .
Overview
PreferredFull Sun
ExposureExposed or Sheltered
Height0.1 – 0.5 M
Rock Rose ‘Orchard’s Royale’
Spread0.1 – 0.5 M
Bloom TimeMay – September
PreferredMost grease types
H. apenninum
MoistureMoist but well - run out or well - drained
pHAny
Helianthemum is a genus of 112 species of low - growing evergreen shrubs and subshrubs plus a few herbs that inhabit Europe , Northern Africa , and South - Western Asia.1Helianthemum . ( n.d . ) . Kew Royal Botanic Gardens . Retrieved June 13 , 2023 , fromhttps://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30002303-2#children
member of this genus farm in legion and varied habitats from oceanside cliffs to national grassland , and from highland meadow to bouldered barrens .
Helianthemum nummulariumcultivars are spreading , mat - forming evergreens that are as if tailor - made for specific garden purposes like floral designs , groundcover , rock gardens , and small edging .
Those Helianthemum coinage that have cosmetic time value and all of the cultivar are also officially named ‘ Rock Rose ’ though the genus as a whole with all its species is also sometimes conversationally referred to as Rock Rose .
Be aware that – very confusingly – the related genus Cistus is also sometimes foretell Rock Rose .
These spreading bush and subshrubs produce from about 20 - 50 atomic number 96 .
block off a few exceptions , all of the in - requirement varieties pass on height of 25 - 35 cm .
This little industrial plant ’s low leaves are diametric ; on some species the upper stems ’ leaves are alternate .
In the majority of smorgasbord , the foliage is a hushed but nervelessly attractive greyish - gullible or bluish - unripe nuance .
Because of this tone and grain of the foliage , these plant life are also call Frostwort .
Interestingly , the form of the parting diverge quite a bit even among the cultivar , varying from linear to ovate with the absolute majority being lancelike or elliptic .
The organisation of the peak varies by species – they may be single or suffer in some or another case of inflorescence .
Flowers are always five - petalled and are disk - shaped or dish - mold .
They are delightfully pretty and though the blooms last for but a day , these bush are incredibly prolific .
Rock Rose plant typically flower from previous spring to midsummer , and extravagantly at that .
Habitat & Growing Conditions
These plants almost always grow in gay locations , and most are fluxing lime - loving plants that grow well in chalky , calcareous ground .
Apart from these two unwashed factors they grow in semi - desert , grassland , field , hilly , and coastal position .
None of the species or cultivars require fertile ground and in nature , the mintage oft grow in even stony and gravelly ground .
All the desirable varieties are hardy to Zone H4 , making them just hardy enough for almost the entire United Kingdom .
How To Grow Rock Rose
The very name Rock Rose is an indicator of where you’re able to found this tough but delicious shrub .
It can make do in inadequate , gravelly or stony soil , and it is one of the best selection for rock garden .
These shrubs are perfect for minute border where you need low - growing plants .
Any airstrip of neutral stain , such as between a walk and a home ’s wall , or between a private road and a tile courtyard , can be greened ( and flowered ) wondrous well by Rock Rose diverseness .
Rock Rose variety are excellent alternative for groundcover on barren slopes and scepter where the distribute mats will both moderate erosion and provide all - class greenery .
In coastal locations that are windswept , have salt - ocean tune , and sandy ground where you will be hard - pressed to grow any flowering flora , Helianthemum will prove to be a gold rush .
in conclusion , you’re able to grow this plant between paving slab and stone , and between paving slab and bordering concrete to control eroding , crumbling , and to view as the terra firma and slabs together .
“ I use Helianthemum in two primary way : in the cracks and gaps of Harlan Fisk Stone wall and between paving Stone in gravel area ” portion Horticulturist and Garden Consultant Colin Skelly .
“ I always grow them in full sunlight . This environment speculate quite closely the home ground range of a function of barbaric Helianthemum population . ”
sun rose can be grown from ejaculate .
This can be done indoors at the break of spring for graft alfresco in previous fountain , or the come can be sown directly outdoors in previous spring which is the more straightforward choice .
Scarify and souse about half your seeds before sowing . Sow seeds on the open and very light cover them with a sprinkling of soil .
irrigate them well and keep water oft – they usually take 15 to 20 days to germinate .
Plant Care
The only no - No for Helianthemum are intemperate mud soil and acid dirt , and full shadowiness . Other than that , anything travel .
Even though this is a lime - have it off genus do not plant itin heavy corpse soil .
Indifferent land is ok so long as it is alkaline – but if you have chalky soil and want to plant Rock Rose , you are in luck .
A light , crumbly dirt made up of gravel , sand , and chalk amended with just a little organic compost or humus will put to work out very well for all Helianthemum .
They do not manage for rich soils – the grunge pH may be from Neutral to Moderately Alkaline – 6.6 to 8.4 .
Soil must run out well and should not outride damp , while the fix should offer full Sunday or at least partial sunlight .
Gradually reduce the amount and frequence of lacrimation as the plants grow .
After they have grow they should be water only when the territory dry out out .
As a road map , about one centimetre of water twice a week should be enough .
In the country ’s cold neighborhood it would be wise to mulch Helianthemums .
Fertilising is not needed but if you would like to seek to boost the number of blooming over the season or its duration , you may feed in the works once in mid - spring using a small amount of high atomic number 19 liquid plant food .
Do not use a balanced fertiliser orone meant for ericaceous plant .
Rock Rose does not need any pruning . However , you may prune them for two reasons :
Common Problems
Rock Rose is not known to tolerate from any pests or disease .
