perennial > ALSTROEMERIA > OVERWINTERING
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ALSTROEMERIA GUIDES
Container GrowingDeadheadingDivisionProblemsVarietiesWinter Care
Alstroemerias carry beautiful lily - like flowers over the summer month , sometimes well into fall .
These flowering perennials may reckon rather exotic , and be native to South America , but they can often be very happy in UK garden .
Most are dauntless flora , with a hardiness rating of H4 , but to keep them take care honorable , you will ask to provide them with appropriate winter caution .
Here are the basic things you need to do to keep Alstroemeria alive over the winter months and ensure fantabulous blossoming displays over a number of years :
1) Mulch Young Alstroemeria Growing In The Ground
While most Alstroemerias can exist winter temperature as broken as -10 ° C , they may not always be stout enough to winter across all of the UK .
In a particularly dusty winter , or in chillier or more break locations , the tuberous ancestor can be damage by the cold .
Alstroemerias are more vulnerable during their first duo of season when the root systems are passably less well prove and when stem will not have dig as deeply .
To protect young plants over winter when they are growing in the ground , you should layer mulch thickly around the crowds and over the roots to stave off the frost and freeze .
A mulched barque , a thick bed of fall leaves , or another insulating mulch like straw or sheep ’s woollen could be ideal .
A stocky constitutive mulchwill not only stave off the frigidness , but can also help to reduce the chance of waterlogging , and improve the structure of the dirt over time .
wintertime wet can be as much of a danger for these plants , which like destitute - drain weather condition , as the cold.1Wet soils : flora for . ( n.d . ) . Royal Horticultural Society . retrieve March 9 , 2023 , fromhttps://www.rhs.org.uk/plants/for-places/wet-soils
2) Ensure Appropriate Growing Conditions For Mature Plants
More mature Alstroemerias acquire in the ground will usually not need any protection to make it through the winter month unscathed .
But remember , it is authoritative that Alstroemerias are placed in a suitable blot for them to overwinter successfully and burst back into Modern growth in bound .
Before wintertime , ensure that you analyse the atmospheric condition in which mature Alstroemerias are produce .
ensure that they are not growing in an to a fault cold area such as a frost air hole or a very exposed localization .
And , most crucially , ensure that the soil in which they are growing drains freely , and that the roots will not sit in damp and waterlogged condition .
High winter rainfall can cause problems where the soil does not allow that water to run out out relatively quickly .
3) Move Container-Grown Alstroemerias To A Frost-Free Location
Unlike Alstroemerias growing in the ground , container - grown plants will not usually be able-bodied to remain outdoors over the wintertime months .
One problem is that roots in a container are not protected from the frigidness by the flock of soil around them .
They are more exposed to cold temperatures than roots within the filth in the ground .
Another issue is that containers can more well become waterlogged during periods of higher wintertime precipitation , have in mind the root may be more prostrate to rotting.2Waterlogging and implosion therapy . ( n.d . ) . Royal Horticultural Society . recollect March 9 , 2023 , fromhttps://www.rhs.org.uk/soil-composts-mulches/waterlogging-flooding
For these reasons , Alstroemerias grown in dope should be make a motion into a frost - destitute location for the winter month .
An unheated greenhouse or coolheaded porch blank is idealistic .
If such as blank is not uncommitted , you may get away with placing pots on their side once the plant life become sleeping , and placing them in a sheltered spot out of doors .
“ I always make a point of try out to con the microclimate of a garden – the tank , shadier position in summertime , and warmer , sheltered slur in winter , for example , ” says Colin Skelly , Master Horticulturist .
“ If there is a part of the garden that is less frost prostrate ( in the lee of a rampart perhaps , or under a tree or prominent shrub ) , then pots might successfully be overwintered in that locating . ”
You might insulate the container to keep the roots good from hard freeze .
But if you may , go container - mature Alstroemerias undercover for wintertime is generally the advance which will yield the respectable results .
