Some useful advice

Plant in well-drained soil or compost

This is true for almost all exotic plants. The last thing you want is for them to be sitting in a bog or clay. Mix pumice, gravel and some organic manure into heavy soils to lighten and improve drainage.

Late Fall and Winter Care

In the Pacific Northwest, outdoor watering can virtually stop after October. The shorter day length and cooler temperature send the plants into semi or full-blown dormancy. They are not active and therefore do not need much water or nutrient to keep them alive. Too much water in winter can cause root rot and algae bloom especially in the green house.

Protection

Protect non-hardy plants in the outdoors with breathable material during the cold winter period.

Summer Care

As a rule of thumb here at Msk Nursery, we water plants only when they show sign of wilting to prevent over-watering and root rot. Herbaceous plants like Pulmonaria angustifolia, Kiringishoma palmata and Ligularia appear to require the most watering. We do not fertilize our plants, they are all grown organically which means we use well-rotted manure/shredded herbaceous plants for mulch. The mulch helps keep the moisture in the ground longer after each watering in late spring and summer.