Snapshot is a post-emergent herbicide only, so it is not made to kill any existing plants. Geranium cinereum (ballerina) is listed as intolerant of over-the-top Snapshot applications, while the common weed Carolina geranium is prevented from germinating by using Snapshot. Geranium incarnum and Geranium subcaulescens are listed as tolerant plants of Snapshot. Since the exact species you mention is not listed as either tolerant or intolerant, we would recommend testing over a small area before treating around a large area of this groundcover, or selecting a different product for your needs.
If you would like to tell us more specifically which plants you are wanting to kill/prevent and which are the desirable plants, then we can better assist you.
Snapshot 2.5 TG is labeled to be used safely on the following fern species: Australian Tree Fern, Filicoides Fern, Cypress Fern, Tasmanian Tree Fern, Japanese Painted Fern, and Tassel Fern.
Yes, you could apply Snapshot more than once during the year in accordance with the product label. Fall applications will help control winter weeds such as poa annua. Repeat applications at 150 lb per Acre and higher should not be made sooner than 60 days after a previous application of Snapshot 2.5 TG. Do not apply over 600 lb per Acre total of Snapshot 2.5 TG within a 12-month period. Be sure to follow label precautions in areas where you may intend to transplant or grow other plants in the future.
Snapshot 2.5 TG is not labeled to be used in any turf grasses. It is meant to be used in landscape beds and around trees. There are many different types of weeds in your area that would fit this description. We would most likely need an identification before recommending a product so that we can get the one that best fits your needs.
Snapshot 2.5 TG is applied using a drop or rotary type spreader designed to apply granular herbicides or insecticides. Refer to the product label for specific application rates for your needs.
Snapshot 2.5 TG is not labeled to be used around anything edible so we cannot recommend planting pumkin seeds in the treated area for at least 1 year or completely removing the treated soil and replacing with clean soil.
Snapshot 2.5 TG is applied at a rate of 2.3 to 4.6 lbs. per 1,000 sq. ft. Please see the product label for complete application instructions
Snapshot 2.5 TG is not labeled to prevent wild onion and there is no pre-emergent that will. Wild Onion can be dug out to remove the bulbs for best non chemical results. You are just limited on what you can spray in areas with desirable plants and must spot treat directly with non selective herbicides.
Snapshot 2.5 TG is labeled as safe to apply to some ornamental grass species. You can find a full list of grasses where Snapshot can be applied on the product label.
You should not plant or consume edible vegetation that has been treated with Snapshot 2.5 TG or use the treated soil on vegetables.
Snapshot 2.5 TG can be applied to damp ground from dew or a previous rain, but you would not want to apply when the ground is saturated or holding water. Snapshot does need to be activated by water within 3 days of application to be effective.
Roundup would be good to use to kill anything in the bed now as well as spot treating with care on future weeds, then you could plant in 2 weeks and apply Snapshot 2.5 TG after planting for future prevention.
Since Snapshot is a pre-emergent herbicide and needs to be watered in, you want to be sure the area is not so dry or sloped that the product will not just run out of the area when you water it. You may want to use sprinklers, a hose, or a watering can to moisten the treatment area first to help the granules stay in place before activating with water.
Snapshot 2.5 TG is best applied directly to the soil and then watered in as it is a pre-emergent herbicide. If some granules get on the leaves during application, these should be knocked off if they do not come off after watering.
Snapshot 2.5 TG is safe when used according to the product label. Ideally you would want to apply on a day with no wind to minimize excess drift of the product into non target areas. If you are wearing the proper PPE (personal protective equipment) as listed on the Product Label- long sleeve shirt, long pants, shoes plus socks- then there should be minimal chance of the product contacting your skin. If some does blow and touch your skin, just rinse and wash it with soapy water.
The complete list of tolerable plants including palms that Snapshot 2.5 TG can be used on is found on the label here.