As part of a series of special posts up here I will be posting information about Companion planting and grouping plants of interest by the family they belong to. I've you've read The Wild Harvest Digest posts on Nextdoor already imagine these posts as a expanded version since I do not have to deal with pesky character limits here. The source material for some of this information is Carrots Love Tomatoes by Louise Riotte, Rodale's Companion Planting and, Roses Love Garlic by Louise Riotte as well as the North Carolina Extension Gardener Plant Tool Box, The Ladybird Johnson Wildflower Center and a few other credible online sources. Today's post will cover the Carrot Family which is known today collectively as the Apiaceae family, but in older publications is known as the Umbelliferae. The older name is a direct reference to the shape of the flower heads of plants in this family which is called an Umbel. The new name Apiaceae was first used by John Lindley in 1836, it derives from the name Apium which is the ancient Greek name of Celery. the original family name didn't officially switch over until about 1996, which ironically is why a bunch of my horticulture books still use the old name. You will see this a lot when it comes to major plant families in common cultivation because they get more scientific study.
Anise (Pimpinella anisum) – Anise is an annual herb in the Carrot family. It is said to have antiseptic oils and its chief use is that it helps Coriander seed germinate when they are sown outside near each other.
Caraway (Carum carvi) – Caraway is a biennial that is difficult to sprout, though some sources indicate that sowing it around freshly sown garden peas helps the germination rate indicating they would be a good pairing. It does not however grow well near its cousin Fennel.
Carrots (Daucus carota subspecies sativus) – Carrots get protective effects from being grown close to Onions, Rosemary, Black Salsify, Wormwood and Sage. Carrots grow best when paired with tomatoes because they impede weeds and their low arching foliage helps keep the soil cooler. Carrots also are a good pairing with peas but according to a few sources will not do as well near their cousin Dill. Queen Anne’s Lace is a carrot that has escaped cultivation or a wild carrot that has reverted to a natural form, we have patches of these in Fayetteville.
Celeriac (Apium graveolens variety rapaceum) – This alternative form of Celery does its best if grown after a sowing of winter vetch has been turned under in the same spot. Celeriac because it is a biennial root vegetable needs higher than normal levels of Nitrogen and Potassium and pairs in the garden with leeks and also Field/cow peas.
Celery (Apium graveolens) – Celery much like Celeriac is a biennial and grows well with onions, but also with Tomatoes and Cabbages. Both Celery and Celeriac have a chemical compound (apigenin) in them that have a blood sugar lowering and insulin resistance effect.
Chervil (Anthriscus cerefolium) – Commonly called French Parsley, in our climate this herb is best grown with morning sun and afternoon shade. Radishes are annuals and short–lived annuals and so is Chervil they benefit from being close to each other.
Coriander (Coriandrum sativum) – Coriander is also known as Cilantro; Coriander is the seeds of the plant, and Cilantro is the foliage. Coriander is a cold weather biennial herb that is best sown in late August through mid-September and be expected to survive the winter in the southeast. Coriander is said to repel aphids, to help Anise but be a problem for Fennel.
Dill (Anethum graveolens) – Dill is an annual that readily self-sows giving it the appearance of a biennial or perennial. Dill is said to be a good match for Cabbage.
Fennel (Foeniculum vulgare) – Fennel comes in one of two varieties, the green type or the bronze type; both of them are safely edible. Fennel according to some sources inhibits members of the Nightshade family while pairing with Cabbages, Onions and Mint family members. In come older publications another plant (Nigella sativa) is also commonly called Fennel.
Parsley (Petroselinum crispum) – Parsley is a biennial that comes in two forms, the curled or flat leaf types. The former is often used as a garnish and the latter as a seasoning but both can be used in culinary dishes. Parsley seed sown with Carrot seed can help fight off Carrot flies. Parsley planted under Tomatoes can help the vigor of the Tomatoes while also acting as a ground cover to suppress weeds. Eating a sprig of parsley and washing it down despite the taste with ice-cold water can help obliterate bad breath.
Parsnip (Pastinaca sativa) – Parsnips are a biennial and are known for their difficult germination and their seeds having a very poor shelf life. They’re one of the few root vegetables that don’t really get any pests but if you can get them to germinate they can grow under Tomatoes just like carrots.
Lovage (Levisticum officinale) – Lovage is essentially perennial miniature Celery with a flavor that is described as a mix of Celery and Parsley with more kick. The Leaves, roots and seeds are all used in culinary and herbal/medicinal recipes and this plant is said to help pretty much everything else do better.
For the purposes of companion planting someone is inevitably going to ask about the two problem children of the Carrot Family; Poison Hemlock (Conium maculatum) and, Giant Hogweed (Heracleum mantegazzianum).
The first one was used historically to kill Socrates after he was convicted of corrupting the youth of Athens. Poison Hemlock is a biennial and looks a lot like a Wild Carrot but, Hemlock can get well over eight feet tall, has hollow stems and when it’s foliage is crushed or bruised it emits a unpleasant odor. Also purple spotting is likely to be present on the stems of Poison Hemlock.
Giant Hogweed which is considered a noxious invasive plant has phototoxic sap that can really mess up your skin. Giant Hogweed can get up to 18 feet tall and has leaves that almost resemble those on an unrelated Cardoon (Cynara cardunculus). Giant Hogweed also has hollow purple spotted stems that are often 2-6” in diameter with coarse bristles and leaves may be as wide as 8 feet. In short everything on this plant is massive. It thus far has only been found in Watauga County near blowing rock in NC. For the next bit about companion planting, I’m going to take a look at the Onion family and then after that the Cabbage family.
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