Seed are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut. Seeds are produced in several related groups of plants, and their manner of production distinguishes the angiosperms ("enclosed seeds") from the gymnosperms ("naked seeds"). Angiosperm seeds are produced in
Burpee Seeds the previous year as one of six gardeners nationwide whose marigolds came closest to being white. Vonk kept seeds from the lightest flowers in her garden each season, replanting for over two decades before achieving a pure white marigold that measured 2.5 inches in diameter. Her entry in the 1975 edition of the contest topped 8,200 other entrants and produced what was then described as the "costliest flower ever." Burpee Seeds Burpee Seeds, officially W. Atlee Burpee & Co., is a seed company that was founded by Washington Atlee Burpee in 1876. The company is not named after a relationship