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Rhododendron - Growing Guide

 

The Basics

Rhododendrons are most suited to a mild to temperate or cold climate. They offer spectacular spring flowers and are closely related to Azaleas. Following a few basics when planting your new shrubs will reward you with a beautiful spring garden.

In Ground Planting

  • Position is most important so choose a spot that has well draining soil and provides dappled sunlight with protection from hot afternoon sun.
  • Rhododendrons require acidic soil, a Ph of 4.5-6 is ideal. Before planting, be sure to enrich the soil with good quality organic content.
  • Dig a hole that is roughly twice as wide and the same depth as the root-ball. Gently tease out the roots before placing the shrub in the ground.
  • Once the plant is positioned in the hole, replenish the soil and gently firm down. Form a ring-shaped raised section of soil around the outer edge of the plant root-ball, this allows the water to remain where it is most needed.
  • Water the new plant in well and keep moist for several weeks until it is well established.
  • Mulch well with organic matter, keeping it away from the trunk.
  • Apply a slow release fertilizer such as Osmocote 12 month slow release around the root zone in early spring.
  • Dead-heading, or removing the old flowers is especially important on young or weak plants.

Planting in Pots

  • Choose a dwarf variety of Rhododendron. Some lovely varieties that will do well in pots include Cilpinense, Cowbells, Doc, Pirianda Pink and Russatum.
  • Make sure the pot is at least twice the size of the plant and has adequate drainage holes.
  • Be sure to use good quality potting mix.
  • Remove the plant from the container and gently tease out the roots.
  • Position in the pot, replenish the soil and gently press down and water in well.
  • Position in a spot that receives dappled sunlight.
  • Feed every 6-8 weeks

 

 

 

 

 

 

2 comments

  • Hi,
    Re: Rhoderdendrons & Azaleas pot size/age/height.

    I am just wondering if you can tell me roughly the age of both the Rhodies and the Azaleas in the 140mm and 200mm pots.

    Also the current heights of the plants (average is ok as I realise actual would depend on the plant itself).

    I am looking to Purchase like 4 Rhoderdendron in 200mm pots and 10 Azalea (either 140mm or 200mm).

    I live in INVERELL, Nthrn NSW and also would like to know what the deluvery fee would approximately be.

    Many thanks and very kind regards,
    Debbie McNeil
    36 Killean St,
    INVERELL NSW 2360

    Deb McNeil
  • What do you guys charge for postage

    Nathan

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