(Rosmarinus officinalis 'Arp')
Arp Rosemary Feeding Instructions
Though most herbs don't require much fertilizer, at some point they will need it. Herbs produce the most oils when they are given a steady feeding of a slow acting fertilizer such as fish emulsion, bone meal, cottonseed meal and blood meal. Add it to the soil at time of planting or potting. These natural fertilizers break down slowly and provide herbs with nutrition but at a slow pace, thus providing healthy growth and helping produce the flavors we look for. You'll be eating the culinary herbs, so it's wise to use organic fertilizers.
Arp Rosemary Pruning Instructions
Wait to begin pruning deciduous flowering shrubs until they are three years old. Then prune right after all the blooms have faded in Spring. To prune, simply cut the plant back by 1/3 of it's height. You will also want to remove any dead branches that have no new growth emerging, and broken or criss-crossing branches that spoil the shrubs appearance. Older shrubs may benefit from thinning out the number of branches growing from the base of the shrub.
Arp Rosemary Pest Instructions
This plant typically encounters very few pest or disease problems. If a pest or disease problem is identified, treat with an insecticide product, preferably one containing "Neem oil". Neem oil is a safe, triple-action product that can be used to control insects, mites and diseases. If your plant appears seriously stressed or diseased, consult with your local nurseryman, arborist, professional landscaper or local extension agent.