Some vegetables require constant attention. Tomatoes need staking, watering, pruning, disease scouting. Cucumbers need trellising, regular harvest, pest monitoring. Lettuce needs succession planting and shade in summer.
Other vegetables, by happy contrast, mostly grow themselves. Plant them at the right time, water them occasionally, and harvest them when they are ready. We grow several crops in this category every year because they produce reliably without consuming weekend gardening time. Garlic is the champion of the group.
Garlic: plant in autumn, harvest in summer
Garlic is the most rewarding low-effort crop in any garden. Plant once in autumn, ignore through winter, water occasionally in spring, harvest in mid-summer. The result is a year’s supply of fresh garlic from a small patch of bed.
The basic routine: plant individual cloves (pointed end up) 2-3 inches deep and 6 inches apart in mid-to-late October. Mulch with 4-6 inches of straw or shredded leaves. Walk away until spring.
In spring, the green shoots emerge in March or April. Water during dry stretches. In late June or early July (zone 6), some varieties produce a curling flower stem called a scape; harvest these for cooking. By mid-to-late July, the lower leaves yellow and the bulbs are ready to harvest.
One hundred square feet of garlic produces enough for a year for most households. Once planted in autumn, the total work for the entire season is perhaps 2-3 hours.
Onions: from sets is the easy version
Onions can be grown from seed (complicated, long season), from transplants (moderate), or from sets (easy). For low-effort onion growing, sets are the way.
Onion sets are small dormant onion bulbs sold in spring. Plant in early spring (March-April in zones 5-6) at 4-6 inch spacing. They grow steadily through the summer and bulb up by mid-summer. Harvest when the tops yellow and fall over, typically in July or August.
Yellow onions, red onions, and white onions all grow from sets. The harvest is smaller than from properly grown transplants but the effort required is dramatically less.
Sweet potatoes: plant slips, harvest mountains
Sweet potatoes are the surprise low-effort crop. Once planted, they need almost nothing until harvest. The vines spread aggressively, suppressing weeds. The tubers form underground without any intervention.
Plant sweet potato slips (rooted cuttings, available from garden centers or grown from a sprouting sweet potato) in late spring after soil has warmed to at least 65F. Space 12 inches apart in rows 36 inches apart. Mulch lightly.
The vines spread to cover 4-6 feet per plant. Harvest in early autumn before the first frost, when leaves begin to yellow. Each plant typically produces 3-5 pounds of sweet potatoes.
Cure for 1-2 weeks at warm temperatures (85F) after harvest to develop sweetness. After curing, sweet potatoes store for several months in a cool dark place.
Rhubarb: plant once, harvest for decades
Rhubarb is a perennial vegetable (or fruit, depending on who you ask) that produces reliably from a single planting for 15-25 years. The total lifetime effort per plant is minimal.
Plant rhubarb crowns (or starts from a friend’s established plant) in spring or autumn. Space 36-48 inches apart in deep rich soil. Wait one full year before harvesting; year two takes a light harvest; year three and beyond produce abundantly.
An established rhubarb plant produces 5-15 pounds of stalks per year for many years. The plant goes completely dormant in winter, requires no attention, and emerges reliably each spring. Two or three rhubarb plants supply a household indefinitely.
Horseradish: aggressive once established
Horseradish is perhaps the most low-effort plant in the garden. Plant a single root cutting and the plant will spread and produce for as long as you tolerate it. Many gardeners describe it as “almost too easy.”
Plant a horseradish root cutting in a permanent location (not a bed you plan to remove later; once established, horseradish is nearly impossible to eliminate). Plant in spring or autumn. Water occasionally the first year.
Harvest roots in autumn or early spring by digging up large mature roots. The plant regenerates from any small piece left in the soil. A single plant produces enough horseradish for a household for years.
Why these crops work
The pattern across these five crops is consistent. Each one:
Has a long establishment period (garlic and onions in spring, sweet potatoes in summer) but minimal active management during that period.
Suppresses its own weeds through mulch or aggressive foliage growth, eliminating the weeding chore that drives most garden maintenance.
Stores well after harvest, providing food long past the gardening season.
Produces meaningful kitchen quantities from modest space (a 4×4 foot bed produces a year of garlic).
Resists most pests and diseases that plague other vegetable crops, requiring minimal interventions.
Some crops require ongoing attention to produce well. Others mostly grow themselves once planted. Garlic, onions from sets, sweet potatoes, rhubarb, and horseradish are the standouts in our garden. A small section dedicated to these low-effort crops produces real food while requiring almost none of the gardening time you spend on the demanding crops elsewhere. Start with garlic this autumn; the satisfaction-per-effort is remarkable.
The single garlic variety that has changed our garden
After years of growing standard hardneck garlic, we shifted to Music garlic in year four and it has become the only variety we plant now. Music is a Porcelain-type hardneck developed in Italy and brought to North America by Al Music in the 1980s. The bulbs are dramatically larger than most other varieties (often 8 ounces or more), the cloves are easy to peel, and the flavor is rich without being overpowering.
Music has one significant advantage for cold-climate gardeners: it is extremely cold-hardy. Plantings have survived our zone 7a winters without any mulch in mild years and produced full-size bulbs the following July. In zone 5 and 6 it remains reliable with the standard 4-6 inches of straw mulch.
The storage life is also impressive. Properly cured Music garlic keeps in our cool basement from August harvest through April or May of the following year without sprouting or softening. The last few heads of one harvest overlap with the first new green garlic of the next season, giving us continuous supply.
Source the seed garlic from a regional small farm if possible. Music has been widely propagated; quality varies. Buying from a local Master Gardener seed swap or regional organic farm produces better results than ordering from larger online sources.
Related reading from the journal
Other entries worth your time: Growing Tomatoes Without the Usual Heartbreak, Late-Season Sowing for an Extended Harvest, and Pollinator-Friendly Vegetable Garden Design.
Further reading
Trusted references we consulted while researching this piece. All external.
