The seeds of sweet peas are mildly poisonous, containing lathyrogens that, if ingested, in large quantities can cause a condition called Lathyrus. Symptoms of Lathyrus are paralysis, labored breathing, and convulsions.
Are wild sweet peas invasive?
Cultivated sweet pea (Lathyrus spp.) is a cottage garden staple. But when sweet peas grow wild, they can naturalize and become a weed. Sweet peas are not considered a harmful or invasive plant, but they can be annoying when growing where you don’t want them.
Is Sweet Pea a wildflower?
Sweet Pea are also considered wildflowers. Once established, they will thrive and spread easily. If in a flower garden, they can get out of hand easily and overcrowd other flowers. Tip: To keep the flowers blooming, pick spent blooms before the seed begins to form.
Do Sweet peas come back every year?
Sweet peas (Lathyrus odoratus) only live for a year, dying after setting seed. But don’t let this put you off as they are super easy to grow from seed. Perennial species such as Lathyrus latifolius come back year after year, but mostly lack fragrance and there are fewer to choose from.
Is vetch the same as sweet pea?
They both have ferny foliage reminiscent of sweet peas with purple flowers that give way to small seed pods that look just like pea pods; however, they are non-edible. The main difference between the two species is size: hairy vetch grows as a sprawling mass about knee high, while common vetch can get waist high.
Can you take cuttings from perennial sweet pea?
Sweet pea cuttings can be taken from young sweet pea seedlings. If you only have a few plants of a variety and want more but have run out of seed, then it is relatively easy to take cuttings and get them to root and grow.
What to do with sweet peas when finished flowering?
Cut perennial Lathyrus back to ground level in autumn or, preferably, leave the cutting back until February so the dead stems provide cover for wildlife in winter. Simply pull out and compost annual sweet peas once flowering has finished at the end of summer. In hot, dry seasons this might be a bit sooner.
Does sweet pea come back every year?
Are sweet peas poisonous to dogs?
Any of these plants can be considered toxic to your dog, cat, or other small animals. Although they sound like they should be edible, sweet pea plants are not food. As a matter of fact, they contain the toxic chemical called aminoproprionitrile, which causes musculoskeletal and central nervous system problems.
What time of year to plant sweet pea plants?
In USDA planting zones 7 to 9, the best time to plant sweet peas is in late October to mid-November and even into December if the area does not experience hard frosts. If the soil is still workable…
What is the life span of the plant “sweet pea”?
Sweet Peas originate from the Mediterranean and are naturally an early spring bloomer. Blooming period is extended with cooler temperatures, but once the heat of summer sets in, sweet peas are at the end of their natural life cycle. The life cycle is complete in one year.
Is Sweet Pea Vine an invasive plant?
In many areas of North America, the perennial sweet pea ( L. latifolius) is an invasive problem , clogging open fields and roadsides. It looks pretty until you realize it’s crowding out other plants and acting like a thug.
Is sweet pea flower edible?
Species The genus Lathyrus has 110 species and a large number of cultivars. Some peas, such as English peas and podded peas are edible, but the sweat pea and its seeds are toxic. Related flowers are often known as vetchlings. Care Tips Lathydorus odoratus is not hardy enough to withstand frost and should be protected from it.