There are around 40 specie of snapdragon ( Antirrhinumspp . ) , which are blossom plants grown for their glorious bloom - covered still hunt that come in an array of colouration . The bloom are said to resemble the snout of a tartar , hence the species name .
The most ordinarily cultivated mintage of snapdragon is the greater snapdragon ( Antirrhinum majus ) , which is hardy in U.S. Department of Agriculture industrial plant hardiness geographical zone 7 to 10 , though some hardier hybrid are usable .
Are Snapdragons Perennials or Annuals?
Snapdragons are curtly - lived perennials within their hardiness zona . This means they only live for a few years . North of zone 7 , however , mintage snapdragons are originate as yearly , thoughthey can be overwinteredwith some protection . snapdragon are inexpensive to buy in starter battalion in the natural spring , however , which is why worry for the plant as perennial is not always worthwhile .
The Dulcinea ’s Heart snapdragon cultivar ( Antirrhinum’Dulcinea ’s Heart , ' zona 5 to 8) , which produces jaundiced and apricot - bleached flowers and has a height of up to 15 inches , is a hybrid cultivar that is hardy to USDA geographical zone 5 .
Snapdragon plants begin to bloom in April until the first frost of the fall . South of geographical zone 7 , snapdragon are often planted in the dip and will bloom incessantly while temperatures are above freeze . However , they may not bloom during the hottest parts of the summer .
Growing Perennial Snapdragons
Snapdragons can be easily grown from seed . The seminal fluid take about 10 to 14 days to germinate and best do so at temperature between 60 and 70 ° F . You canstart the seeds indoorsand transplant them into the garden before the last frost date , as these plant can manage a light freeze .
Snapdragons call for full sun , which mean six to eight hour of sunshine a Clarence Shepard Day Jr. , so as to execute at their best .
snapdragon hail in a range of meridian , include gnome varieties with a height between 6 and 15 inches and tall variety that may be 3 or 4 feet marvelous . Tall snapdragons necessitate to be stake during the first few week until the plant become bushy enough to support their own weighting .
Tip
Do not water snapdragon overhead , as wet can lead to a number of fungal diseases , including leafage smudge and sericeous mildew .
