I’m wondering if the sweet pea needs to come out or just trimmed back for the winter?
Kilmarknock, Virginia is listed as zone 7a. Sweetpea bushes will only be winter hardy in USDA zones 9 and up. Digging them up will be necessary for survival in the winter.
This article will help you with the care of this plant:
https://www.gardeningknowhow.com/ornamental/shrubs/sweet-pea-shrubs/growing-sweet-pea-shrubs.htm
how can I take cuttings from a potted sweet pea bush ??
Here are some articles that will help you with the task:
https://www.gardeningknowhow.com/garden-how-to/projects/rooting-plant-cuttings.htm
https://www.gardeningknowhow.com/garden-how-to/propagation/cuttings/root-stimulating-hormone.htm
https://www.gardeningknowhow.com/garden-how-to/propagation/cuttings/honey-root-hormone.htm
https://www.gardeningknowhow.com/ornamental/shrubs/sweet-pea-shrubs/growing-sweet-pea-shrubs.htm
This get Bush direct full sun in area code 93291 Visalia California
They need regular watering, although they are water-wise plants, little to no pruning, and full to part sun.
https://www.gardeningknowhow.com/ornamental/shrubs/sweet-pea-shrubs/growing-sweet-pea-shrubs.htm
This year our flowers were mostly white. When they were about 1/2metre high I spread some coffee grinds at the base, Do you think they changed the colour
Most modern Sweet Pea cultivars have co-dominant color gene combinations. Some are, even, marketed as "color changing" so it can be expected from time to time. Make sure that your soil nutrition is good, and do not feed them sources of nitrogen (like coffee grounds) since they harvest their own atmospheric nitrogen. If you choose to feed them at all, make sure that it is a blend that contains phosphorus and potassium, only. This will promote healthy blooms without adding extra nitrogen.
Here is an article that will help you to care for them:
https://www.gardeningknowhow.com/ornamental/flowers/sweet-pea/care-of-sweet-peas.htm
my sweet peas were grown from see indoors and put out last April in a large pot in a sunny spot , lovely height plenty of leaves but no flowers ,what did i do wrong please
This article should help:
https://www.gardeningknowhow.com/ornamental/flowers/sweet-pea/sweet-peas-not-blooming.htm
Had a sweet pea tree planted March of 2021 and now all the leaves on it have turned yellow and falling off and the flowers are all wilting. Tree about 6ft tall. House was tented this past January for termites. The tree is outside of the tent area yet close to it. Other plants under and close to the tent have no signs of damage. Is there a life expectancy of this plant? Thank you for any help you can give me. PS I scraped bark and found green 1st photo
They have a lifespan of between 40 and 150 years! This will mean that yours is probably suffering from the treatment.
I would have your soil tested by your local extension to know for sure if there are any contaminants.
Since your tree is still alive, I would recommend giving it the best care that you can until it recovers, or until you see results of a soil test.
https://www.gardeningknowhow.com/extension-search
https://www.gardeningknowhow.com/ornamental/trees/caragana-pea-tree/pea-tree-information.htm
It is worth mentioning that you are outside of the zones in which it is known to survive. You are in zone 10, where this tree is registered as hardy from zone 2-8. With this in mind, your tree will struggle, and any damage or stress to it will be magnified.
Can I rescue sweet peas that had too much nitrogen? healthy leaves and tall but no flowers If I add phosphate now will they flower?
Phosphorus and potassium can help offset the nitrogen, but I would flush the soil first. This can be made easier using soil flushing agents that contain citric acid.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-fertilizer-burn.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fertilizer-burn-in-gardens.htm
https://www.gardeningknowhow.com/ornamental/flowers/sweet-pea/care-of-sweet-peas.htm