Slugs
Sluggin' it out....
Peat
Peat .. the big issue
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Peat
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And another thing .....


13 Jan 2013
Seed Potatoes
Seed potatoes are now becoming available in garden centres etc. Don't wait too long before getting in your seed tubers......(more)

13 Jan 2013
The supply of peat
The wet weather during 2012 has restricted the supply of peat for the coming season and as a result prices for peat-based growing media (multi-purpose composts etc) will probably increase......(more)

Calubrachoa

Many garden plants are available in a range of different colours. We were curious to know if some colours flower more profusely than others. We therefore set up a very simple test to get some preliminary information using Calibrachoa.

Trial details
Plugs of Calibrachoa ‘Cabaret’ were planted first in 9 cm pots in April using a standard professional peat compost and later transferred to larger 13 cm pots in the same compost. Plants were kept under glass, watered as required and no fertilizer was applied. Flowers were removed and counted at intervals during the season.

A single plant of each of five colours were compared, namely:

Deep Blue / Purple Glow / Red Improved / White / Yellow

Flowers were collected from May 3rd to the end of October.

The Challenge

  1. Can you rank of the colours from the most to the least productive?
  2. How about guessing the number of flowers produced by the most productive colour?
Results
Ranking Colour Number of flowers
1 White 1474
2 Deep Blue 1342
3 Yellow 1051
4 Purple Glow 1051
5 Red Improved 963
Comment
It is important to note that these numbers cannot be regarded as a reliable or accurate indicator of the flowering potential of the different colours since only one plant from each colour was used. They do indicate that without fertilizer and grown in a compost at moderate nutrient levels you can expect to get around 1000 to 1500 flowers on each plant. They suggest, for example, that White will produce more flowers than Red Improved but we will need to use more plants of each colour to be sure that the results reflect the true potential of the different cultivars.

 


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