Cultivars
Mike Berst
A cultivar must differentiate to exist. A plant is only named, propagated, and marketed as a cultivar if it grows bigger or faster, flowers longer or more uniformly, shows stronger color or altered form, tolerates transport or container production better, or behaves more predictably in managed settings. If it did none of those things, it would be indistinguishable from the straight species and economically pointless to propagate separately. A cultivar that confers no advantage would not be selected.
Selection pressure is the product. Cultivars are not accidents; they are products of deliberate filtering. That filtering optimizes for visual impact, uniformity, survivability under artificial conditions, and retail performance. Those pressures are orthogonal to ecological fitness. Even traits labeled “more resilient” are usually resilience to disturbance, shipping, and neglect, not resilience within ecological relationships.
A neutral cultivar cannot exist
Any trait change has ecological consequences. There is no such thing as a trait that changes nothing. Altering growth rate changes resource allocation. Changing flower size or timing alters pollinator access and synchrony. Modifying leaf chemistry affects herbivore use. Adjusting fertility changes population dynamics. There is no free modification. True neutrality would require no change in form, timing, chemistry, or reproduction. At that point, the plant would not be a cultivar at all.
Sales are not incidental — they are the reason for cultivars being named and propagated. Cultivars exist because the nursery trade requires predictability and novelty. Intellectual property protections and trademarks create exclusivity, and “new” drives repeat sales. Ecological compatibility is not part of the business model. At best, it becomes a marketing overlay. For this reason, cultivars are structurally incapable of neutrality.
This holds even for so-called “good” cultivars. Even if a cultivar supports pollinators, resembles the wild type, or survives in a restoration setting, it still represents narrowed genetic diversity, frozen traits, and the replacement of ecological selection with commercial selection. That outcome is not a side effect. It is the definition. A “neutral cultivar” cannot exist.
Conclusion
There is no such thing as an environmentally neutral cultivar, because neutrality would make the cultivar economically meaningless. Cultivars exist because they are different. They sell because they are different. They persist because that difference is maintained artificially. Habitat preservation and restoration depend on difference not being frozen. If a plant needed no human improvement to do its work, there would be no market for improving it.
Apples Make the Cultivar Contradiction Unmistakable
Apples are one of the clearest examples because every named apple is a cultivar. Apples do not come true from seed. Each variety is a singular genetic individual preserved only through grafting.
“Why do we need so many kinds of apples? Because there are so many folks. A person has a right to gratify his legitimate tastes. If he wants twenty or forty kinds of apples for his personal use, running from Early Harvest to Roxbury Russet, he should be accorded the privilege. Some place should be provided where he may obtain trees or scions. There is merit in variety itself. It provides more points of contact with life, and leads away from uniformity and monotony.”
— Liberty Hyde Bailey
Bailey was writing at a time when orchards still preserved enormous diversity. Varieties were selected locally, often by farmers and orchardists responding to taste, climate, storage needs, and the practical demands of particular places.
Those orchards were not merely collections of fruit types. They were repositories of genetic diversity, records of regional adaptation, expressions of human–land relationships, and living archives that could not be recreated once destroyed.
Why Ancient Maize Varieties Are Disappearing
Ancient maize varieties in Central America are not disappearing because they failed. They are disappearing because the systems that sustained them are being replaced. These maize varieties are best understood not as cultivars but as landraces—genetically diverse populations rather than clones. They evolved over centuries in specific places, shaped by local soils, climate, pests, and cultural use. Because they are populations rather than fixed types, they retain the ability to continue evolving in response to change.
Their loss is driven by several overlapping pressures: industrial hybrid seed replacing saved seed, agricultural policies favoring monoculture, market pressure toward standardized grain, migration and the loss of intergenerational farming knowledge, and intellectual property systems that discourage seed saving. When a maize landrace disappears, it is not merely outcompeted. A locally adapted gene pool—and the knowledge embedded in it—is gone permanently. This is not modernization. It is narrowing.
A Shared Pattern: Maize, Apples, and Native Plants
The disappearance of ancient maize varieties follows the same pattern seen in apples and increasingly in native plants. Maize landraces are dynamic populations rather than fixed traits. Their diversity provides resilience to drought, disease, and climate variability. Replacing them with uniform hybrids trades adaptability for short-term yield. Apples present a different version of the same pattern. Every named apple is a clonal cultivar. Historical orchards once preserved enormous genetic and cultural diversity. Modern production selects for storage, transport, and visual appearance. When orchards disappear, entire varieties vanish with them.
Native plants historically exist as genetically diverse, locally adapted populations. Cultivars replace that variability with fixed, human-selected traits. Uniformity is rewarded, and ecological relationship becomes incidental. Across all three cases, the same force is visible: local adaptation replaced by standardization, evolutionary process replaced by market selection, and resilience replaced by control. What disappears is not only diversity but agency—the capacity of living systems to respond to place and change. This is why habitat preservation and restoration cannot rely on cultivars. Cultivars freeze traits for commerce. Habitat depends on variation, response, and continued selection by the environment itself.