I have garvinea pot plants. How much do I water them to keep them moist?
Water as the soil begins to feel dry to the touch. This is likely daily in the warm summer weather, and even twice a day when the temperatures are above 80 degrees.
Water so the entire root system is wet, but excess water drains away. Avoid watering down into the crown of the plant. You can set the pot in a tray of water and allow the soil to take up water from the bottom.
https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/growing-gerbera-daisies.htm
Can Gerbera daisies be planted now, the beginning of autumn in New Jersey?
Gerberas should be planted in the spring after the risk of frost has passed. They can be grown from seeds or transplanted as explained in this article:
https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/growing-gerbera-daisies.htm
Will gerberas survive the winter?
Gerberas can survive the winter outdoors in gardening zones 8 to 11, but will be killed by the winter in colder regions. See this article to determine what zone you are in:
https://www.gardeningknowhow.com/planting-zones/usda-planting-zone-map.htm
Annual or perennial?
Very good question!
In zones 8-10 a perennial, in zone 7 a tender perennial, and an annual in zone 6 and under.
https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/growing-gerbera-daisies.htm
I live in zone 9, coastal LA. Can my pots be left outside through the winter? What temp should I bring them in for? Right now they are in a flower bed in a sunny spot. We have been receiving lots of rain and the plants have a few dark spots on some leaves. When can they be either repotted or placed in the ground?
First I would protect the pots from excess rain. They could be unable to drain away all the excess water and if the roots sit in soggy soil will develop root rot.
Dark spots could indicate a fungus disease that also can be caused by the damp conditions and lack of air flow.
Gerbera are a frost tender perennial and can withstand temperatures down to 30 degrees F. Any frost will damage or likely kill the plant.
Here is a great article with care information.
https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/growing-gerbera-daisies.htm
Something has been neatly biting off the flowers as they come out - it is a very clean removal from the stem - and the flower is nowhere to be found. The leaves are not touched. It happens at night. Any ideas what would do this? Thanks.
Rabbits would be my guess- they usually make a very clean cut when they eat flowers. Deer, mice, and other mammals can eat flowers, but rabbits usually make the cleanest cut- and they seem to love daisies.
http://msue.anr.msu.edu/news/identifying_critter_damage_in_the_garden_and_landscape
When is the best time to plant Gerbera daisies that you buy in a pot? What does it mean when they talk about the crown? I have never grown flowers and I love the way the colors are on Gerbera daisies.
Gerbera daisies aren't frost hardy, so you should plant them outside once all chance of spring frost has passed.
The crown of a plant is the spot where the stems join the roots. It's important to plant Gerbera daisies with the crown above the soil - this means you should be able to see the spot where the stems connect to the plant aboveground. You can read all about that here:
https://www.gardeningknowhow.com/garden-how-to/info/what-is-crown-on-plant.htm
This article will tell you more about Gerbera daisies in general:
https://www.gardeningknowhow.com/ornamental/flowers/gerbera-daisy/growing-gerbera-daisies.htm