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Gardening :

THE GARDEN MAGAZINE - May 1917 page 226

The Garden Magazine May 1917 page 226 Dahlias

May 1917
Front Cover / Inside Front
Inside Back / Back Cover


211 Spring Time is Lilac Time AD
More Crops from Your Garden ADs
215 Manure, Catalog ADs
216 Nursery, Bulb ADs
217 Irrigation, Greenhouse ADs
218 Nurseries, Portable Houses ADs
219 Table of Contents
220 The President to the People (Wilson's plea for gardens)
221 Among our Garden Neighbors
222 Papaya, Opal Anchusa, Cotton, Japanese Knotweed
223 Gordonia, Building a Better Home, Letters
224 The Month's Reminder
225 Summer Flower-Roots for Present Planting - Gladiolus
New Deutzias Better than Old
230 The Rockery Idea in Edgings
231 Home Vegetable Gardens A Patriotic Duty
How the Modern Lilac Came to Be
234 Victor Lemoine, Plant Hybridist
The Evolution of My Garden
237 The New Race of Hardy Astilbes
Prepare in May for Winter Flowers
Novelties in Summer Flower-roots and Bulbs
243 Flower Ads
244 The Fruit Garden -
Crown Grafting
245 Nursery ADs
How to Pot A Plant
247 Gladiolus, Evergreens, Trellis ADs
249 Lawn Mower, Nurseries ADs
250 Insurance by Protection
251 Flower ADs
252 Watermelon Stem End Rot
253 Lawn Mower, Flowers ADs
254 The Indigoferas for Late Flower
255 Shrubs, Rudyard Kipling, Humas ADs
Coming Events Club & Society News
257 Book ADs
259 Greenhouse, Birdhouse, Portable Houses, Flag Poles ADs
261 Pottery, Greenhouse, Stoves, Wire Cloth ADs
262 Companions for Larkspurs
263 War Air Generator, Listerine, Stanley, Birdhouses ADs
264 Chicken Chowder, Fence, Portable Poultry Runways, Oregon & California Railroad Co. Land Grants for Sale (2,300,000 acres)ADs


(cont'd) Summer Flower-Roots for Present Planting    G.W. Kerr  Pennsylvania

Provide now for the great displays of late summer and fall—how to manage for successions of bloom till the time of frost—practical combinations

Dahlias - decorative, cactus, collarette types

Decorative type                         Cactus type                       Cactus type                       Collarette type


   Plant Dahlias in May, or June, or July? Why should we defer planting if it can be done in May, and will not May give better results than late June? The time to plant Dahlias is a much debated questions among the experts even. There are probably many factors that control the answer. The matter of location is a big factor. For instance, it is beyond question that in some sections it makes not the slightest difference whether the roots are set out in early May or early July. Where early May planting can be done, the plants begin to flower about the middle of July, and under disbudding continue bloom8ing until frost, yet in a neighboring district the best results will accrue from planting as late as it is possible to keep the plants out of the ground. Many good Dahlia enthusiasts devote part of the Fourth of July to the ceremonial setting out of Dahlia roots.

   Why? Because in some sections the wood from early growth becomes so hard that it cannot continue the succulent development - that is essential for the production of good flowers. In other words, in certain localities late planting tides the plant over the early August drought so that it continues a normal, succulent growth later, whereas by early planting under such conditions, the early August drought produces a fatal hardening of the tissues. It matters not how thoroughly the ground is cultivated, nor how frequently it is done, Dahlia plants stop growing and the main stalk becomes too hard in sections where the late July and August drought is accompanied by excessive heat. Under such circumstances flower development is made impossible unless the plants are then cut back hard; that is to say, clear to the bottom pair of leaves so that the subsequent development of the plant is from soft, young growth made from the base. Fresh succulent growth is essential for the production of Dahlia flowers. If you must plant your Dahlia roots in May (and it is very hard not to do so) if you have not had success with them of late years try the new practice this year of cutting them back during the early part of July.    Green plants or dormant roots? Again a matter of opinion. Many experienced growers say that there is no advantage one way or the other, while others claim that the green plant—that is a plant that is rooted from a cutting taken in heat in spring—will give exhibition quality flowers. The Dahlia has long been a favorite garden plant in England. Indeed it has been largely developed to its present perfection in that country, and there nothing but green plants are used when flowers are wanted.
   My own experience during the past few seasons in Pennsylvania has led me to favor green plants, but this statement needs qualifying to the extent of saying that as far as the ultimate quality of the flower is concerned the results are the same. The cutting back system has one disadvantage, that is the inclination of some plants to throw out numerous suckers from the old root after the original top has been cut back. This, of course, is the result of stimulating into growth the latent eyes which under normal conditions would have remained practically dormant, but which the check of cutting back stimulates into action. These must be watched for and removed, cutting them well below the soil level. This is important in order to get air and light freely circulating around the growing stems.

continued next page

This shows how one individual plant of the modern early flowering Chrysanthemum will develop under good cultivation. A veritable bouquet.


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