Baking soda neutralizes the ph in the soil and nothing will grow there. use baking soda around all of the edges of flower beds to keep the grass and weeds from growing into beds. Just sprinkle it onto the soil so that it covers it lightly. Do this twice a year – spring and fall.
Power Perennials: Plants That Thrive No Matter What
Once found growing wild on the American prairie, coneflowers are now one of the most widely grown and hybridized perennials in the country: http://www.bhg.com/gardening/flowers/perennials/power-perennials/?socsrc=bhgpin041914coneflower&page=9
Creeping Thyme. Plant in full sun to partial shade. Blooms all summer long. Will tolerate all soil types, is drought tolerant, rabbit and deer resistant. This old-fashioned perennial has a year round display of color. In early summer the plants are covered with stunning pinkish-rose flowers that last until the first hard frost. The stunning foliage stays all through the winter months. A very hardy perennial that attracts butterflies and can be grown throughout the country. Zones 4 - 9.
Salvia - Perennial salvias are a huge family of plants. Most have aromatic, often edible foliage and produce colorful spikes in blue, pink, purple, red, yellow or white. Besides decorating the garden, perennial salvia attracts butterflies, hummingbirds and bees. Salvia grows in just about any sunny site that has good drainage. The plant prefers regular water but holds up to moderate drought. USDA Zones 4 to 10
Purple Fountain Grass - Popular, drought tolerant grass forms neat clumps of purplish maroon blades. Topped by rose red flower spikes summer through fall. Beautiful as landscape specimen or planted in groups. Provides quick annual color in any climate. Perennial in warm climates.
Salvia May Night - deadhead flowers & it will bloom all summer long. Drought tolerant once established. Full sun, well-drained soil. Zones 5 - 9. Cut & dry flowers for arrangements, pot pouries & cooking. Deer resistant; attracts butterflies, hummingbirds & bees.