Black Brandywine Tomato

Two Different Tomatoes Share This One Name

Buy seed labeled Black Brandywine tomato and you might get one of two genuinely different plants. That surprises a lot of gardeners.

One is a carefully documented heirloom with a clear story. The other is an older, less stable line that can throw mixed results in your garden.

Knowing which one you have changes what to expect from your plants. It affects leaf shape, fruit consistency, and even flavor. It also explains why two gardeners can rate the same variety so differently.

This guide untangles the naming mess first, then gives you a complete plan for growing the Black Brandywine tomato well.

What the Black Brandywine Tomato Is

The best documented version traces back to Dr. Harold Martin, a Pennsylvania dentist and amateur breeder. In the late 1920s he crossed the pink Brandywine with an old brown beefsteak called Fejee Improved.

Martin kept the variety private and never released it commercially. Decades later, food historian William Woys Weaver found the seeds in his grandfather’s collection and released them around 2008.

Martin was actually better known for breeding a giant seeded pole lima bean than for tomatoes. This dark Brandywine stayed a quiet side project shared only with a few collectors during his lifetime.

Weaver called his version True Black Brandywine to mark it as the documented Martin strain. It is a potato leaf, indeterminate plant that matures late, around 90 days.

One honest note on the history. Both listed parents were reportedly pink or red. That makes producing a genuinely dark tomato a bit of a puzzle that growers still debate.

Black Brandywine vs True Black Brandywine

Here is the part that trips people up. An earlier Black Brandywine reached the market around 1996 through a Northern California seed producer.

That earlier line was documented as unstable. It produced both regular leaf and potato leaf plants. Fruit varied in size and flavor from one plant to the next.

Weaver’s later True Black Brandywine is the more consistent, better documented strain. It reliably comes potato leaf and traces directly to Dr. Martin’s original work.

So the name on the packet does not tell the whole story. Two growers can plant Black Brandywine tomato seed and end up with noticeably different plants.

The practical fix is simple. If you want consistency, look specifically for True Black Brandywine or a seller who names Weaver’s strain.

Leaf type is your best in garden clue. The documented strain comes potato leaf. A jagged, regular leaf plant is a sign you have the older, less predictable line.

What It Looks Like

Fruit is large and beefsteak shaped, globe to slightly flattened, often 6 to 14 ounces. The color is a dusky, dark mahogany that bleeds deep into the flesh.

The shoulders stay darker and often carry a green or bronze tinge as the fruit ripens. That is normal for this type, not a defect.

The documented strain grows as a potato leaf plant with smooth, rounded leaves. If your plant shows regular jagged leaves, you likely have the older, less stable line.

The plant itself grows tall and rangy as the season goes on. Do not expect a tidy, compact bush, since this is a sprawling heirloom vine.

Flavor and Best Uses

Flavor is the whole reason to grow the Black Brandywine tomato. Growers describe it as complex, earthy, and sweet with a hint of spice and a deep, almost winey richness.

That intense flavor puts it near the top of many gardeners’ taste rankings. The dark, brooding taste is exactly what black tomato fans chase.

Brown and black tomatoes get that flavor from a mix of ripening pigments that stay green while the reds develop. The result is a savory, less acidic taste than a standard red tomato.

Use ripe fruit fresh, where the flavor shines brightest, on sandwiches or sliced with a little salt. It also makes a rich, deeply colored sauce if you have enough to spare.

Given the low yield, most growers eat this one fresh rather than cooking it. When a tomato tastes this good raw, it feels almost wasteful to simmer it into a sauce.

The Yield Tradeoff You Should Expect

Big flavor comes at a real cost with this variety. Brandywine types are famously low yielding, and this one is no exception.

University of Arkansas Extension cites research by Dr. Craig Andersen finding Brandywine among the lowest yielders of more than 40 varieties he grew. It also matures late, often 90 to 100 days, about a month behind many tomatoes.

So plan for a smaller harvest of large, spectacular fruit rather than a heavy crop. Grow a couple of plants if you want enough to cook with as well as slice.

This is a flavor first tomato, plain and simple. You trade quantity and speed for some of the best taste in the garden.

Many experienced growers happily accept that trade every year. A handful of unforgettable tomatoes can be worth more than a heavy crop of average ones.

How to Grow the Black Brandywine Tomato

Our guide to growing tomatoes covers the fundamentals every variety shares. Here is what this variety needs specifically.

Seed Starting

Start seeds indoors 6 to 8 weeks before your last expected frost. Use a sterile seed starting mix and keep it warm and evenly moist until germination.

Because this variety matures late, an early, healthy start matters more than usual. Give seedlings strong light so they stay stocky rather than leggy. A sunny window or a small grow light both work well.

Transplanting and Spacing

Harden seedlings off gradually over about a week before planting outside. Wait until nighttime temperatures stay reliably above 50 degrees.

Space plants at least 3 feet apart, since this indeterminate variety gets large and rangy. Bury the stem deeper than it sat in its pot for stronger roots.

Staking and Support

This is a big, sprawling indeterminate plant that needs sturdy support all season. A tall stake, heavy cage, or trellis all work well.

University of Georgia Extension recommends removing suckers and lower leaves to improve airflow and direct energy to fruit. That matters even more on a low yielding variety, where every fruit counts.

Warm Season Timing

Because this variety needs 90 or more days, gardeners in short season areas should start early and pick a warm, sheltered spot. A little extra season length makes a real difference with a tomato this late.

In very hot climates, aim to have fruit setting before the worst midsummer heat. Extreme heat can slow fruit set on large heirlooms like this one. A light afternoon shade cloth can help during a brutal heat wave.

Light and Soil

Full sun is essential, at least 6 to 8 hours a day. Grow it in loose, well drained soil rich in organic matter.

A soil test before planting tells you exactly what your garden needs. Aim for a pH near 6.2 to 6.8 for the best nutrient uptake.

Watering and Fertilizing

Water deeply and consistently, keeping soil moisture even rather than swinging between dry and soaked. Steady moisture is critical here, since this variety cracks badly when rain hits dry, ripening fruit.

Apply a balanced fertilizer at planting, then side dress once fruit sets. One Ask Extension case traced a struggling, non flowering Brandywine to a nutrient or watering issue. A soil test and steady care both pay off.

Our guide to watering tomatoes covers the rhythm in more depth. And our guide to fertilizing tomatoes handles the feeding schedule.

Pruning

Prune suckers moderately to focus the plant’s energy on its few large fruit. On a low yielding variety, channeling energy into fewer fruit genuinely helps.

Remove the lowest leaves once the plant is established to keep foliage off the soil. Do not overprune, though, since some leaf cover shades the fruit and prevents sunscald.

Companion Planting

Basil and marigolds make classic tomato companions, sharing similar sun and water needs. Both may help deter some common garden pests.

Avoid planting near fennel or dill, since both can slow tomato growth. Give this large, rangy plant plenty of room rather than crowding it with companions.

How to Tell When It Is Ripe

Dark tomatoes are notoriously hard to read for ripeness. This one ripens from the bottom up, with red flesh developing below while the shoulders stay green.

Growers warn that the green shoulder stays tough and needs cutting out, even on ripe fruit. Wait until the lower two thirds is deeply colored and gives slightly to gentle pressure.

Do not wait for the whole fruit to turn uniformly dark, because it will not. Trust softness and the deep color low on the fruit instead of the shoulders.

Birds love these tomatoes as much as you will. Many growers pick at first ripeness and finish them indoors to beat both birds and cracking.

Store ripe fruit at room temperature rather than the refrigerator. Cold storage dulls the deep, complex flavor that makes this variety worth the wait.

Because the fruit is large and thin skinned, plan to eat it within a few days of picking. This is not a tomato bred for long storage or shipping.

Problems to Watch For

Cracking is the most common complaint, especially when rain follows a dry spell. University of Missouri Extension recommends consistent watering and mulch to prevent the moisture swings that cause it. Our tomato problem guide walks through the most common ones.

Green shoulders and catfacing are common with this variety, as Arkansas Extension notes for Brandywines generally. Steady conditions reduce both, but some green shoulder is just part of the type.

Blossom end rot can appear as a dark, sunken spot on the fruit bottom during uneven watering. Consistent soil moisture is the most reliable prevention.

Low yield itself is the biggest thing to plan around. There is no fix for it, so grow enough plants to get the harvest you want.

As an old heirloom, this variety also carries little bred in disease resistance. Crop rotation, good airflow, and clean garden habits do the protective work that breeding would handle in a modern hybrid.

For identification and treatment, our tomato disease guide covers the full list.

Saving Your Own Seed

Because this is an open pollinated variety, saved seed grows true to type. Choose fruit from your healthiest, most typical potato leaf plant to save from.

Scoop out the seeds and ferment them in a small jar of water for a couple of days. Rinse them well, then dry them completely before storing.

Saving seed only from correct, potato leaf plants also helps you lock in a stable strain over time. That matters with a variety this prone to naming and strain confusion.

Label your saved seed clearly with the strain name and year. Over a few seasons, careful selection gives you a dependable, true to type line of your own.

How the Black Brandywine Tomato Compares

Against the classic pink Brandywine, this variety offers a darker, richer, spicier flavor. Both share the low yield and late timing, so neither is a heavy producer.

Against Cherokee Purple, another beloved dark heirloom, this one tends to be even deeper and more intense in flavor. Cherokee Purple is usually the more forgiving and productive plant.

Against Paul Robeson, a similarly rich black tomato, the two are close rivals for flavor fans. Choosing between them often comes down to which strain grows best in your specific garden.

Against a modern hybrid slicer, this variety cannot compete on yield, timing, or disease resistance. It wins only where it counts most for many gardeners, which is flavor. For a taste driven grower, that single win outweighs every other column.

The Verdict

The Black Brandywine tomato is a flavor lover’s tomato, full stop. The deep, complex, winey taste is genuinely among the best you can grow.

Just go in with clear eyes. Expect a low yield, a late harvest, some green shoulders, and possible strain confusion depending on your seed source.

None of that is a reason to skip it. It is simply the honest cost of growing a tomato this flavorful, and most fans decide the trade is well worth it.

For gardeners who value taste over quantity, this variety earns its space every season. Buy the documented True Black Brandywine strain and grow a couple of plants. You will not be disappointed at the table.