annual > PETUNIA > OVERWINTERING

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PETUNIA GUIDES

blue petunia flowers covered in a thin layer of frost

Container GrowingDeadheadingHanging BasketsLegginessOverwinteringPruningSowingSurfinia

With their bright blooms , subtly pay for fragrance and long - lasting flowering time of year , petunias are a favourite in gardens across the country .

Unfortunately , they ’re super sore to the coldness , which entail they ’ll drop dead back at the first sign of frost .

large pale pink flowers from a petunia plant

It is entirely potential to overwinter petunias , which may be an attractive selection if you have splosh out on a more expensive hybrid or have a peculiarly fetching smorgasbord you do n’t desire to part with .

If that vocalise familiar , just perform these actions :

That might seem like a long and puzzling exercise set of instructions for those unfamiliar with petunia care , but in actuality , winter petunias is not too cunning at all .

white secateurs being used to cut back petunia plants

I ’ve outlined each stage in more detail to help as much as possible below .

1) Take Cuttings To Multiply Your Chances

Although overwintering petunias is n’t rocket science , the best - laid plans often go skew-whiff .

For that intellect , it ’s a good idea to ensure against bad luck by taking cuttings when the plant life is in a healthy United States Department of State .

you could do so by nip off off several theme that are 15 cm or more in length and then stripping away the parting from the bottom half .

purple flowering petunia plant being dug from the ground by a green trowel

localize them into single planter fill with compost and educate them indoors as you would when develop petunia from seeded player .

“ Cuttings of Petunia ( and several other half - sturdy perennials ) are best taken as semi - advanced cuttings , ” express Master Horticulturist Colin Skelly .

“ If taken as wintertime insurance policy , I ’d take the cuttings in late July or early August to allow pile of meter for root development before winter . Once rooted , I ’d put them into 6 - 9 cm individual pots ( depending on the size of the cuttings ) using a potting   mix with add together grit to aid drainage when dormant . ”

many potted petunia plants in various shapes and sizes

2) Prune Back By A Third

Petunias will conk out as shortly as the first rime hits , so , before that go on , it ’s clock time to take activity .

Start by dress your plant back , remove all prime and cutting stems back by at least a third .

You should also block all fertilisation at this percentage point .

potted petunias growing on a table side by side

This will boost the petunias to prepare for the wintertime by storing vigour in their bulbs alternatively of promoting growth and blooms .

3) Dig Up Petunias In The Ground

Of course , if your petunia are pot , you’re able to safely ignore this stride , since they can simply be moved to a more hospitable location .

However , if they ’re planted in the garden , you ’ll need to dig them up .

Gently do so , take care not to damage or to a fault commove the root systems .

petunias in shades of purple and pale pink growing in square containers

Wash or pass over forth excess dirt from the bulbs and separate them out .

4) Check For Pests

It ’s dead life-sustaining that you check for a pest infestation at this degree , since bringing them into your place could jeopardise the wellness of your other plants too .

Be mindful that plants may appear pest gratis , but could have enshroud eggs which will incubate .

attend out for webbing , droppings or eggs and take appropriate natural action if you fleck any .

5) Wait For Dormancy

It ’s now prison term to allow your plant hibernate for the winter calendar month .

To do so , identify it in a container large enough to fit the root ball , then fill it with fresh soil around it .

Ensure the pot has enough drain at the bottom .

lead it in a nerveless , dry location where temperatures wo n’t throw near freeze point such as an unwarmed conservatoire or greenhouse .

6) Monitor Over The Winter Months

For the most part , you could leave your dormant plant to its own devices .

However , it ’s a sound idea to revisit every 3 - 4 week to make certain it ’s still alive , specially in the depths of winter .

Do n’t be alert if it loses its leaf – this is innate .

baulk the enticement to water it , since saturated soil is deadly to the root musket ball .

If the top few centimetres have become completely ironical , you may give it a sip of water , but that ’s it .

7) Revive Your Petunias In Spring

Several calendar week before the last Robert Lee Frost , you could begin the process of coaxing your petunias back to living .

Start by moving them from their sleeping location to a slightly warmer spot indoors which enjoys modest sunshine .

you could also get to irrigate them more frequently .

Once the flora displays fresh outgrowth , you’re able to repot them and place them on a cheery windowsill .

After the final Robert Frost has passed and your flora are well and sincerely demonstrate , you could transplant them outdoors and care for them as you did the class prior .