Short answer: If the plant is a perennial, probably not. If it was a tender tropical or annual, probably yes, it is dead. Texas A&M produces a lot of good things, including a large plant-focused research- based website at aggie-horticulture.tamu. edu. Aggie horticulturists define perennials as “plants that persist for many growing seasons.” Annuals are “plants that perform their entire life cycle from seed to flower to seed within a single growing season.”
Short suggestion: Research the plant, starting at aggie-horticulture.tamu. edu. If the plant was a tenappendages tropical or an annual, dig it up and throw it away. If it is a perennial plant or tree, keep the plant or tree where it is and as it is. Do not cut off branches or foliage, even if it looks dead. Continue regular water, fertilizer, and weed care until the end of May.
If the perennial plant or tree has not leafed out by then, it probably cannot and will not. If you can stand it, wait until July to see if the plant will come back from the roots.
