Plant of the week- Camellia x williamsii ‘J C Williams’

One of the sure signs of spring to me has to be the camellias opening up. I know that their are forms like C. sansanqua types, like the one I featured late last year. But those just start the Camellia season and it’s not until the main flowering groups like C.japonica, C.retectulata and of course the C.x williamsii hybrids start flowering in their droves I feel that winter is on its way out.

Camellia x williamsii are a cross between Camellia japonica and Camellia saluenensis. This hybridisation was done on purpose by the great plantsmen J C Williams and Col. Stephenson Clarke at Borde Hill Gardens. It was John Charles Williams who made the first cross in 1923 down in his great garden in Cornwall called Caerhays. The Williams family supported many plant hunting trips by some of our greatest plant hunters and some of the wonders grow quite happy in this real plantsperson garden. The magnolias are of particular note, with some of the very best cambellii trees in the uk. It was indeed at the walls of Caerhays, Camellia saluenensis flowered for the first time in the uk and was crossed soon after by J C Williams to form the Camellia x williamsii hybrids. Indeed from the first batch of seedlings, Camellia x williamsii ‘J C Williams’ was selected and named.

Camellia x williamsii ‘J C Williams’ starts the odd flower from the end of November and it can flower right up to the end of March but I feel in February it is at its best. It’s single flowers range from light pink to a dark pink, are highlighted by the dark green foliage. Camellia x williamsii ‘J C Williams’ is also one of the best hybrids to grow on a wall, preferably one that does get a little shade. Over time Camellia x williamsii ‘J C Williams’ can make a shrub up to 5m high and 3m across but if you don’t have the space, they can be lightly pruned after flowering. If it does get too big, camellias can be reduced down to stumps if required.

Camellia x williamsii ‘J C Williams’ is like all other Camellias in the the fact it does grow best in lime free soil, ideally one that hold moisture well but is also free draining. It is effected by few pests, scale insects are the worse, they live under the leaves and drop their honeydew poo onto the leaves below, Black sooty mould then grows on this, making the plant look unsightly. It is also pretty resistant to Honey Fungus so maybe worth adding to a spot where the existing plant has been killed off by the disease.

Camellia x williamsii ‘J C Williams’ is also pretty easy to grow, a yearly feed of Vitax Q4 and a mulch of well rotted compost just after it has finished flowering would be ideal. As would watering if we get a dry spell in mid-late summer as this is when the flowering buds are formed. Camellia x williamsii ‘J C Williams’ can be easy propagated by heal cuttings in late summer. These are short lengths of newish growth, ideally a couple of years old, pulled gently off a cut branch so some of the existing branch is still there and gives it a heal. These cuttings are best given a little bit of heat in a propagator and should start to grow away before the winter months.

Camellia x williamsii ‘J C Williams’ can be seen in most large gardens that have a good Camellia collection like RHS Wisley and is quite widely sold. Burncoose of Southdown, in Cornwall are still owed by a branch of the Williams family and it’s well worth ordering one from there

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4 Comments Add yours

  1. Mackenzie Glanville says:

    I planted quite a few Camelias when I moved in and I cannot wait for them to grow #LGRTstumble

    1. thomashort says:

      They will look beautiful once they get established won’t they

  2. tonytomeo says:

    Oh, another one I miss. Camellias were our third most significant crop, after rhododendrons and azaleas.

    1. thomashort says:

      They are so beautiful aren’t they

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