Overview and Description:
For years, all we knew about parsley was that curly, bitter sprig on the side of our plate in restaurants. Although parsley is a very attractive plant, it is generally grown as a culinary herb and often wasted as a garnish or plate decoration. Parsley can be difficult to start from seed, but the established seedlings are easy, quick growers.
Parsley is a leafy herb that adds more freshness than flavor to dishes.
As such, it is best used fresh and added at the end of cooking - all the more reason to grow your own.
Curly leaved parsley is a little bitter for some palettes and the flat-leaved, or Italian parsley, is more in favor with today’s cooks.
- Curly-leaved: Petroselinum (var. crispum)
- Flat-leaved: Petroselinum (var. filicinum)
Parsley plants are pretty adaptable. They will grow well in either full sun or partial shade.
Mature size depends on the variety you are growing and how much you harvest from it. In general expect your plants to top out at:
- Height: 12 -18 inches (30 - 45cm).
- Width: 9 - 12 inches (22 - 30cm)
Days to Harvest:
Parsley seed can be very slow to germinate. There's an old saying that the seed has to go to hell and back again 9 times before it sprouts. Expect germination within 21 - 28 days. Seed grown plants ready to harvest in 12 - 14 weeks. Seedlings can be harvest ready in as little as 3 weeks.
USDA Hardiness Zones:
All parsley types are biennials, but they are grown as annuals. Although they tend to survive winter, even in cold climates, they almost immediately go to seed and become too bitter to eat.
You can begin harvesting parsley when it is about 6 inches tall and relatively bushy.
Harvest whole stems, from the base of the plant, to encourage more growth. Cut as needed, but try not to remove more than 1/3 of the leaves at a time.
You can cut and dry any leaves remaining at the end of the season or leave the plants in the ground and try to get more use from the plants the following spring. Although parsley is biennial, most people find the leaves too bitter the second year and the flower stalks will grow surprisingly fast. However, they may hold you over until your new crop is mature enough to harvest.
Parsley is generally designated as either Flat-leaf (sometimes called Italian) or Curly (sometimes called moss). Most chefs think the flat-leaf types are more flavorful and curly parsley is relegated to the side of the plate. Try both. If you have a savory tooth, you might just find curly parsley preferable.
Planting: Starting parsley from seed is a slow endeavor. It can take several weeks for the seeds to germinate. Stratifying the seed by pre-chilling them in the refrigerator and then soaking the seed overnight in warm water, before planting, helps speed the process slightly and gives better germination results.
Sow rows about 10-12 inches apart, barely covering the seed. Thin plants to every 6 inches, once they are about 1 - 3 ft.tall.
Containers: Parsley can be grown fairly well in pots, however parsley has a tap root that can get fairly long and a mature plant can easily reach 2 - 3 ft. in height and 1 - 2 ft. in width, so a large pot is needed.
As an Ornamental Plant: Parsley is sometimes recommended as an edging plant or an accent foliage plant. While parsley is very attractive, be aware that it is also popular with some small animals.
There really isn't much maintenance required, to grow parsley. A little water, a good soil or some monthly fertilizer and you should be fine. Keep harvesting and the plant will keep sending out new leaves.
Pests and Problems:
Parsley can be prone to a handful of fungal diseases, including: Septoria leaf spot, a couple of leaf blights, powdery mildew, and damping off. Start with good quality, disease free seed and allow the plants to have access to good air circulation, to limit spreading.
The biggest pest problem of parsley is the caterpillar of the Blacktail butterfly. It is a host plant for these butterflies and the caterpillars will hatch and munch on the leaves, doing considerable damage. However since these butterflies are so welcome in the garden, I don't recommend doing anything to kill the caterpillars. They will mature soon enough and leave your plants alone.