How To Care For Purple Heart In Winter. Avoid pruning outdoor plants after frost. Pinch or snip off the shoot tips every few weeks to encourage branching.
Water until the excess flows from the drainage holes of the pot. Move and transplant purple heart in fall after it finishes flowering for the season or in late winter before growth resumes. Provide one inch of water every 14 to 21 days until the vernal equinox then resume the weekly watering schedule.
Be bold with the sun exposure.
To conserve water withhold water until the leaves become curled or limp. When the cold temperatures of autumn start to set in cover the stumps of your plant stems with a thick layer of mulch that spreads out to cover the area. 1 Spread 2 inches of compost over a sandy well-drained garden bed and. Fertilize purple heart once every month while the plants are actively growing.