Replant in May in open soil. Achimenes prefer rich, moist soil high in organic matter. In Zone 9, and elsewhere, they should be grown in bright shade. Avoid getting water on the leaves of these gloxinia and african violet relatives. Tigridia Of the approximately 25 known species of Tigridia, only two, T. pavonia and T. ehrenbergii, are well-suited to our hot, humid climate.
Most species are denizens of higher elevations in the Andes and prefer cooler temperatures.
Scott Ogden in his book, Garden Bulbs for the South, suggests they can be successfully grown in our climate if the bulbs are given ample water, good rich soil and part shade. He also encourages gardeners to plant the bulbs at least 4 inches deep, and ideally 5, to mimic the cool root runs found in their native land. He also recommends lifting the bulbs and storing them like gladioli over the winter. T. ehrenbergii is native to northern Mexico's Sierra Madre mountains. As such, it is much more tolerant of our humid climate.