Important: Safety Warning
This page recommends pest-control substances such as arsenic compounds, strychnine, or cyanide — in some cases applied to food crops. These substances are lethal to humans and animals, and their use is now banned or strictly controlled.
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Introduction: Hybrid Perpetual
May 25. Now starts the season's procession of bloom, led by the sturdy Rugosas and the Yellow Briar roses. Start feeding the Hybrid Perpetual roses with liquid manure.
June 1.-With this month we see the true glory of the "Feast of Roses."
June 5. Watch for the rose beetle and rose slug, and spray every ten days for three weeks with a half pound of arsenate of lead to ten gallons of water.
June 10.-Begin to nourish the Teas and Hybrid Teas with liquid manure. (Page 17.) You'll soon see the result.
June 20 to 30.-Now the Teas, Hybrid Teas, and Climbers begin blooming in abundance. Cut your blossoms freely. Look out for mildew and apply the remedy.
July 1.-Keep the soil well stirred. A dust mulch at this season is important.