Frozen Impatients - please help!
Two of my impatients planted in our backyard got frost on them one night 2 weeks ago. They are impatients digitata mervensis and impatiens arguta. The frost was on 80% of the plants and 80% of leaves dropped blackened. All stems look still strong and no color change can be observed. 20% of leaves survived look healthy. I. digitata mervensis is 1 foot wide, planted for about 1 year ago and at the time of the frost, it was still producing many flowers. I. Arguta is 2 feet wide, planted about 6 months ago, produced seeds 2 months ago and is rooting from stems. Could you please advise me if there is anything I should do to help these plants recover such as cutting stems, etc?