![]() ![]() Bolting isn’t a terrible thing! It’s what the plant is supposed to do. When cilantro is ready to bolt it’s going to bolt. Can I REALLY Stop My Cilantro from Bolting?īecause we’re here to deliver gardening advice that doesn’t suck, the truthful answer is…Unfortunately no, you can’t stop cilantro from bolting! Nor can you really slow it down in any meaningful way. But it can happen, so just make sure your plants are getting plenty of light and appropriate amounts of water and nutrients. Now, if you’re growing your cilantro under the right conditions this trigger won’t be as common a culprit as temperature and photoperiod. Plants that are under stress, say too little water or light, can sometimes – in a last-ditch effort to survive – pull all their existing resources to flower and make some seed before they die. How Stress can influence Cilantro BoltingĪ possible trigger for your cilantro to bolt out of season is stress. However, if you're growing cilantro indoors under grow lights then you do have significantly more control and it may be possible to delay the onset of bolting. For me in Dallas, TX a 12-hour day happens right about March 16…if you live in New York, you’re looking at about March 18.Ĭlearly, there’s nothing anyone can do to change the daylength. The longer the days the faster the flowering. Once the day length exceeds 12 hours, as we head into late-winter or spring, your cilantro will set its sights on flowering. The next trigger is photoperiod, or daylength. In certain hot climates night temperatures are often just as warm or hot as day temperatures…causing plants to bolt, or bolt sooner. Warm days and cool nights result in a cooler day-night average temperature. Yes…but, you might not have considered the differences in night temperature between different growing regions. “But wait! You just told me I can grow cilantro at temperatures between 50-85☏….but didn’t you also just tell me it bolts at warm temperatures? 85☏ is pretty warm! ” You may also be able to get in a short crop from planting transplants in February, but it will be a short growing season with bolting occurring in March. In Texas cilantro grow cilantro from September through February to early-March. ![]() In the Pacific Northwest, grow cilantro May through November.In southern California plant cilantro late-September-November and harvested late fall through early spring.In some parts of California cilantro can be grown year-round with harvests March-Mid-November.In New York City, grow cilantro from mid-April through early-November.If only it were that simple! It really depends on your local growing conditions…and importantly night temperatures. You’ll see plenty of generic recommendations for growing cilantro between 50-85F. Your best cilantro harvest will come when temperatures do not exceed 65-70☏. Cilantro is an annual that thrives in cool to moderate temperatures and plants are triggered to bolt and flower when temperatures hit the 70s. What Causes Cilantro to Bolt? How Temperature Impacts Cilantro Bolting Once you notice this tell-tale sign of bolting, hold onto your herbs because these plants are off to the races! Plants will then get very tall, very quickly. You may also notice some yellowing of the foliage, as the plant pulls nutrients from older leaves to fuel flower and seed development. You’ll know your cilantro is about to bolt when you notice a thick central stem developing that has smaller, more deeply lobed leaves (very feathery looking). Bolting and flowering are a totally natural part of your plant’s life cycle. cilantro, broccoli) that live for one or two growing seasons, respectively, and then die after producing mature seeds for the next generation. The term “bolting” is most used when referring to biennial plants (ex. The cilantro plant is doing this because it has sensed that it's time may be coming to an end, and it wants to create seeds (aka coriander) for the next generation. Bolting is when the plant shifts into its flowering phase, sending up an elongated flowering stem that develops into an inflorescence (a complete flower head that includes the stems, stalks, and flowers). What Is Bolting, And How Can I Tell If My Cilantro Is Bolting?įirst off, let’s define the term bolting so you get a good handle on this developmental change in your cilantro plants. ![]()
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