Photo: "supersweet 100" by sharon_k · CC BY-SA 2.0

Tomato · Cherry

Supersweet 100 Tomatoes

Indeterminate · Solanaceae

Improved version of Sweet 100 bred by Northrup King. Better disease resistance (VFN vs VF), improved crack resistance, and even higher sugar content. Largely replaced Sweet 100 in commercial seed catalogs. Same vigorous growth habit and prolific production. Hybrid (F1).

At a Glance

Days to Maturity

60–65 days

Sun

8+ hours

full sun, 8-10 hours

Spacing

24–36 "

Seed Start

6–8 weeks

before transplant

Container

Not Ideal

10+ gallon pot

Height

6–10 ft

Zone Planting Guide

Your USDA Zone:

Growing Guide

Germination

Germination Time 5–10 days

Optimal Temp 80°F

Seed Depth 0.25"

Transplanting

Min Soil Temp 60°F

Harden Off 10 days

Watering

Weekly Water 1–2 "

Needs Consistent

Method Drip or base watering

Soil

pH Range 6–6.8

Soil Type Well-draining, rich organic matter

Support Cage — Equally vigorous to Sweet 100. Needs sturdy 6ft+ cage or tall stakes.

Resilience

Heat: Moderate Cold: Low Drought: Low

Disease Resistance

V F N

Common Problems

fruit-cracking

Cause: Inconsistent watering — improved crack resistance over Sweet 100 but still possible

Prevention: Drip irrigation, consistent watering, mulch

early-blight

Cause: Fungal, worse in humid conditions

Prevention: Mulch, prune lower leaves, copper fungicide

blossom-drop

Cause: Temperature extremes

Prevention: Shade cloth in extreme heat

Nutrition

Feeding Intensity Heavy feeder

Calcium Critical — supplement recommended

Recommended Recipes Root drench, Silica foliar, Worm castings topdress, Compost tea

Harvest

Fully colored deep red, ~1 inch round, slight give. Identical appearance to Sweet 100. Detaches easily from calyx.

Expected Yield 8–12 lbs/plant

Storage 5 days — Counter at room temp stem-side down. Never refrigerate.

Companion Planting

Good Companions

Genovese basil Repels aphids and whiteflies

Nantes carrot Different root depth

Flat leaf parsley Attracts beneficial insects

French marigold Repels nematodes — especially valuable since nematode resistance is a key feature

Borage Attracts pollinators

Avoid Planting Near

Herb fennel Inhibits most garden plants

Sources

seed_catalog Johnny's Selected Seeds seed_catalog Victory Seeds seed_catalog Hoss Seeds seed_catalog John Scheepers Kitchen Garden Seeds seed_catalog Ferry-Morse reference TomatoDirt.com

More Tomatos

Supersweet 100 Tomatoes Planting Dates by Zone

Planting dates for Supersweet 100 Tomatoes vary by USDA hardiness zone. Select your zone below for frost dates, start-indoors timing, and a full monthly planting calendar.

Zone 5A Zone 5B Zone 6A Zone 6B Zone 7A Zone 7B Zone 8A Zone 8B Zone 9A Zone 9B

Ready to grow Supersweet 100?

Get a personalized planting schedule based on your exact zone with frost dates, task reminders, and feeding plans.

Start Your Garden Plan