Seven Summer Garden Tips for August

  • Difficulty Rating: Beginner
Seven Summer Garden Tips for August

August in the garden can be challenging for both gardeners and plants.

But it’s also a time to evaluate your garden, both the successes and the failures, and decide what you may want to change for next year.  Here are some tips to keep your gardens healthy in the heat of August.


1. Pull weeds as soon as you notice them, before they go to seed in the garden. This will help reduce overwintering weeds that can wreak havoc next year. Use the handFiskars Big Grip weedefor tough weeds like dandelions and thistles. 

Dead-heading-phlox-with-a Fiskars Multi-Snip

2. Remove spent flowers (deadhead) on annuals, roses and perennials. Many will reward you with more blooms that continue well into fall. Use the Fiskars Garden Multi Snip which comes with a handy sheath for cutting flowers to bring in the house or cutting off dead blooms.


Certain flowers are good candidates for drying including hydrangea blossoms, globe amaranth, celosia, straw flowers and ornamental grasses. Harvest them when they are dry in the morning but before noon when temperatures begin to get hot.  With annual flowers, select those that are not fully open.   

Once you cut the stems, strip all the leaves and remove any damaged parts of the flower.

Store them in a dry, dark, warm place, preferably one with good air circulation. 

Depending on the type of flower, it may take two to three weeks before they are completely dry. 

You can also hang them upside down to dry, or in a vase without water.

Once they dry completely, the blooms should last for years, although the colors will fade over time.

Pruning-dead-branches-with-a Fiskars Quantum Lopper

3. Prune and remove dead branches on shrubs and small trees.


4. Keep new plantings (planted within the past six months) of flowers, shrubs and trees watered during hot, dry spells.

Apply a fresh layer of mulch (1 to 2 inches thick) after you weed. This will help the soil maintain moisture and reduce future weed crops. 

Big-Grip-trowel-digging soil for testing

5. Have your soil tested. A simple soil test can help you determine which nutrients may be lacking and what you need to add (according to what you are growing.) in the way of amendments to ensure your plants will thrive.  Contact your state Extension Office for more information. 

6. Order spring flowering bulbs like daffodils and tulips. Most companies will ship them to you at the appropriate time in the fall. The soil temperature should be 60 F or cooler before you plant.


7. Start seeds for fall crops including spinach, lettuce and greens. Many of these will grow well into winter and tolerate light frost.