The fastest-growing radish variety is Cherry Belle. It goes from seed to harvest in just 22-25 days under the right conditions. Early Scarlet Globe and Saxa come in close behind at under 30 days. If you want radishes on your plate fast, Cherry Belle is the one to plant.
I tested this by growing Cherry Belle next to Watermelon radish last fall. The Cherry Belle seeds sprouted in 4 days and had plump round roots ready to pull by day 23. The Watermelon radish sprouted at the same time but the roots were barely marble-sized at that point. Those Watermelon radishes needed a full 60 days to reach harvest size. I was eating Cherry Belle in salads while the slower variety still had weeks of growing left to do.
Why do some radish types grow so much faster than others? Spring cultivars like Cherry Belle have been bred for quick root growth in cool weather. They put most of their energy into the root bulb during their first few weeks of life. Winter types like daikon take a different path. They build large storage roots that can feed the plant through longer seasons. That extra size takes more time to pack on.
UMN Extension confirms that garden radishes reach harvest in 3-5 weeks after planting. The quick maturing radish types all fall on the short end of that range. Cherry Belle leads at 22-25 days. Early Scarlet Globe hits about 24 days. Saxa comes in at around 25 days. UIUC Extension notes that Icicle and French Breakfast land at 25-30 days. Those work best for late-spring planting.
In my experience Cherry Belle is the most forgiving pick for beginners too. It handles slight soil problems, minor watering gaps, and tight spacing better than fussier types. The round shape means it doesn't need deep loose soil the way long varieties like Icicle do. I suggest it as your first radish if you haven't grown one before. The fast results keep you excited about the garden.
The fastest radishes to grow also work great for staggered harvests from one planting. Put Cherry Belle next to a slower type like French Breakfast and you get two pulls from one bed. Your Cherry Belle comes out at week 3 and your French Breakfast follows at week 4-5. I use this method every spring and it keeps fresh radishes on my cutting board for weeks without having to reseed.
When I first started growing radishes I only planted one variety at a time and ran out fast. Now I plant rows of three or four different types on the same day. The quick ones give me something to eat right away while the slower ones fill in behind them. It's a simple trick that makes your garden feel twice as productive.
If you want the fastest radishes to grow in your garden, start with Cherry Belle and branch out from there. Mix in a few slower types for variety and staggered pulls. You'll have roots ready to eat before most of your other crops even have their second set of leaves.
Read the full article: Growing Radishes: 7 Professional Tips for Bumper Harvests
