Choosing Your First Orchid

You are viewing orchids at your first orchid show. A wealth of colour and exotic fragrances tease the senses. You are enthralled and must have an orchid of your very own! Which one should you buy?

Before you get swept away in the heat of the moment, consider what orchids require to grow and bloom again.

LIGHT - All orchids require sunlight or artificial light. Some orchids such as Paphiopedilums grow well in low light while others such as Cattleyas need much more light to bloom well. Sunlight should always be filtered through a curtain: direct sunlight can burn leaves. Both Paphiopedilums and the Moth Orchids, Phalaenopsis, are excellent choices for apartment dwellers.

TEMPERATURE - Most orchids flourish at room temperature but a few such as Masdevallia prefer cooler temperatures. Others such as Vandas grow best with added heat. Always ask which temperature range an orchid requires before you make your purchase.

HUMIDITY - Most orchids revel in humid, breezy conditions that are difficult to recreate in our homes. Some orchids that are less demanding include Cattleyas and Paphiopedilums. Daily misting combined with weekly watering keeps these plants healthy and happy.

WATER - Orchids are sensitive to water quality, especially Promeneas and Masdevallias. They grow best when the water is relatively free of dissolved mineral salts. When possible, use rainwater or deionized water.

FERTILIZER - Orchids can make do with only a little 'food' but will bloom well if fed regularly. Use a balanced liquid fertilizer containing chelated micro nutrients at one-quarter recommended strength on a weekly to monthly basis. Water with only plain water on occasion to flush away excess mineral salts.

Please contact the OHS or the author if you wish to republish these articles. © Ottawa Horticultural Society

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