Mountain wildflower mix is designed to do exceptionally well in the mountain areas of the U.S. The mix consists of 23 species, annuals and biennials or perennials which mean the mix will provide a maximum of assorted colors during the first year and prosper for many following years. Many of the varieties do well in higher elevations with limited moisture. This mix is formulated for all Western elevations around 7,000 feet. Hardiness zones: 3-7 (-37øC/-35øF, -15øC/ 5øF) in winter. The northeast region summer temperatures are around 80-94øF (26-34øC) during the day and around 62-70øF (16-21øC) at night. The flowers can thrive with less than 10 in. or up to 40 in. of rain per year. They bloom from late spring to summer, and prefer full sun but can grow in afternoon shade. The flowers do well in average to sandy garden soil. They are also very attractive to friendly visitors, like butterflies and hummingbirds. Do not fertilize wildflowers unless the soil is extremely depleted of nutrients. Fertilizers encourage weed growth and lush foliage rather than flowers. If the soil needs improvement, we suggest adding organic matter such as weed-free grass clippings, well rotted compost or peat moss. The wild flowers need to be watered regularly during the summer to keep the plants at their peak. Like most flowers, this mix will do best in full sun, but it will perform in partial shade (at least 8 hours of sunlight per day preferred). To aid in natural reseeding and to keep a neat appearance, you can mow the flowers after they have gone to seed and lost their bloom. Mow them at a height of 4-6 inches-mowing below 3 inches could damage the perennial flowers.