Second is Buxus.

a boxwood is a boxwood ... there should be no appreciable difference in plant cultural variables between cultivars ...

thats a fancy way of saying.. it doesnt matter which boxwood it is ... as to care ...

ken

The top ones are Primulas and have the colour and flower structure of P vulgaris. However they have multiple flowers in umbels rather than single flowers on invidividual stems. So they are a hybrid of some sort. P vulgaris interbreeds with P eliator and various garden polyanthus type Primulas, so you may never pin the parentage down exactly.

Boxwoods appreciate extra iron.

Boxwoods appreciate extra iron.

That would depend on site specific soil conditions, best determined by sampling soil and having it analyzed.

All your plants look healthy and happy. I can see a lot of organic mulch around them so just continue this way. Any organic material is good, but variety is best. In my gardens I use compost, grass clippings, wood chips, straw, leaves . . . The mulch keeps the soil temperature more stable and prevents moisture from evaporating too quickly. This kind of environment is beneficial to the roots and to the soil organisms, and provides food for them, too. By digesting, your micro-herd will supply balanced fertilizer for your plants. No need for synthetic fertilizers, no need for tinkering with the soil, just infrequent but thorough watering when the need arises. As an extra, small amount of organic fertilizer, like organic Alfalfa meal late in fall would supply extra food for your soil micro-herd, so could be beneficial.

As for iron you could use, judiciously, either liquid or powder form of Seaweed. Nutrients such as iron are the most available to plants in a
slightly acidic soil with pH of 5.5 - 6.5. Do you know, Mark, is your soil acidic or alkaline?

I'm surprised to hear the 'extra' iron requirement. Wild box grows on alkaline soils over here.