When we named the nursery in 1976, we were in Chimacum and we haven’t moved in 45 years. Chimacum moved, thanks to the mail ladies who decided to rearrange things based on their routes. We are not really in Port Ludlow either. We are south of the Hood Canal Bridge on the Olympic Peninsula side. Please click on location to see where we really are.
Species rhododendrons are plants that occur in the northern hemisphere around the globe growing all on their own. No human planted them and no human tends them. Hybrid rhododendrons are plants that have been produced originally from species by humans who have attempted to improve on Mother Nature. Once more than one species is used to create a new plant, it’s a hybrid. Species rhododendrons always have Latin/Greek sounding names (that are sometimes hard to pronounce or remember). Hybrids have names from the vernacular that are good for marketing and easier to remember, e.g. Teddy Bear, Morning Sunshine, etc.
Around Valentine’s Day and Mother’s Day, use any fertilizer labeled specifically for rhododendrons. Follow instructions on the package, sprinkling it out at the drip line (the outer circle made by the branches). Don’t pile it around the trunk. If not sure how much, give less rather than more. Rhody roots are at the surface and can burn if you pile the fertilizer on. Don’t work the fertilizer in to the soil, because you will chop up the fine roots on the surface.
Gentle watering means: rhodies prefer to stay moist but they don’t want to drown. So more frequent (daily if needed in the summer) light watering is better than once-a-week flooding. You will know the plant needs water if the leaves are drooping. If your plant is in a container, don’t waterlog it.
Also, be sure your plant is in an area that drains (e.g. not sitting on a bed of hard clay that would trap the water around the roots). For the first year, make sure that the root ball is actually getting wet. Check by sticking your finger gently into the root ball area. If you are just transplanting a plant, it will take a little time to expand its roots into your soil, but right now all it has is what came out of the pot.
Rhodies from containers can be planted any time of the year. So this is a fine time to plant them and they will be happier out of the pots than in them. You simply have to pay a bit more attention to watering through the summer months, whereas if you plant in the fall, Mother Nature most likely will do the watering for you. But, go ahead and plant yours now!
Rhodies will take a fair amount of direct sun here in the Northwest. The basic principle is not to cook them. If their leaves start to sunburn, you can seek more shade. The toughest sun is full, direct sun from noon to 5 p.m.
Putting them under the eaves is not the best idea, because if they are a large species, they will get too big too close to your house.
Our rhodies thrive under a woodland canopy and it’s inevitable that they will end up next to trees whose roots extend into the rhodie area. Rhodies are quite social and play well with others. In the wild they often grow among the trees. Many of our rhodies are doing well in the full sun, so it’s important to know the likes of your species. Remember that rhodies are easily moved, even when they get bigger, because their roots are fairly shallow. So, if your plant is not happy, you can move it.
Yes. There is no such thing as a drought-tolerant, desert loving rhododendron. Here in the Northwest, Mother Nature usually does the watering for us for most of the year, but all rhodies need summer water (even our native R. macrophyllum has had trouble in the droughts of the past decade). The good news: rhodies do not need tons of water; they prefer more frequent sips, and so drip systems work quite well and do a good job of conserving water.
By giving fertilizer early in the season, you provide the plant with nutrients for its upcoming growth cycle. By fertilizing in May, you provide nutrients for setting flower buds for the following spring. You don’t want to fertilize in the fall because that might spur new growth which would not harden up in time for winter.
Rhododendrons, even big ones, can usually be moved fairly easily because they are surface rooters. If you have watered well during the summer, fall is a great time to move them because the upcoming rains will help them settle in to their new spots. Try to take a root ball that reaches to the drip line (outermost edges of the leaves). It doesn't have to be super thick but do get as many roots as possible.
Lucky you. You will never have to dig a hole again. Unless you are going to amend every square foot of your garden, all you will do is create a bathtub designed to drown your rhododendron. Instead, plant on top of your clay pit. Put down a layer of sharp rock for drainage, then place a good soil on top of that and put your rhody on top of that, mounding up to the top of the root ball.
The best time is when it’s in full bloom. You can even bring any flower trusses you cut into the house to enjoy them. The plant should then put on new growth after trimming. Any time is a good time to cut away dead branches.
A good way to “prune” is to pick out the center bud as it elongates in the spring if it’s just going to make a single shoot of new leaves. By doing this, you force the growth buds at the base of each leaf to develop into new branches, giving you a bushier plant. If it’s a flower bud, don’t touch it. Flower buds will generally be larger and rounder than leaf buds.
Visit the American Rhododendron Society (ARS) for some good recommendations.
The American Rhododendron Society (ARS) has chapters in many locations in both the United States and Europe. Attending a meeting will introduce you to all sorts of interesting people with questions and answers much like yours. Membership also includes a subscription to their quarterly Journal. This publication offers a wide range of articles covering all aspects of the genus Rhododendron.
